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Impetigo: Symptoms and causes

What is impetigo?

Impetigo is a highly contagious skin infection caused by bacteria, primarily Staphylococcus aureus or Streptococcus pyogenes. It is most commonly seen in children, although adults can also be affected. The infection typically affects the face, especially around the nose and mouth, but it can also occur on other parts of the body.

Impetigo is characterized by the appearance of red sores or blisters that burst and ooze fluid, forming a yellowish-brown crust. The affected area may be itchy, and scratching can spread the infection to other parts of the body. The condition is easily spread through direct contact with the sores or through sharing personal items such as towels or clothing.

There are two main types of impetigo: non-bullous impetigo and bullous impetigo. Non-bullous impetigo is the more common form and typically starts as small red bumps that develop into blisters. These blisters rupture and form a honey-colored crust. Bullous impetigo is less common and is characterized by larger fluid-filled blisters that are more resistant to rupture.

Impetigo is usually diagnosed based on its characteristic appearance. In some cases, a swab of the affected area may be taken to identify the bacteria causing the infection. Treatment typically involves topical antibiotics, such as mupirocin or fusidic acid, to apply to the affected area. In more severe cases or when the infection has spread, oral antibiotics may be prescribed.

It's important to keep the affected area clean, avoid scratching, and practice good hygiene to prevent the spread of impetigo. Additionally, affected individuals should avoid close contact with others until the infection is healed and crusts are no longer present.





How common is impetigo?

Impetigo is a fairly common skin infection, especially among children. Its prevalence can vary depending on factors such as geographic location, socioeconomic conditions, and climate. In general, impetigo tends to be more common in warm and humid climates.

Estimates suggest that impetigo affects millions of people worldwide each year. It is particularly prevalent in crowded or unsanitary environments, such as schools, daycares, and athletic facilities, where the bacteria can easily spread from person to person. It is more common in children aged 2 to 5 years but can occur at any age.

In some regions, impetigo outbreaks can occur, affecting larger groups of people within a community or institution. These outbreaks often require public health interventions to control the spread of the infection.

While impetigo is considered a common condition, the implementation of good hygiene practices and prompt treatment can help reduce its incidence and prevent its spread.


Can adults get impetigo?

Yes, adults can also get impetigo. While the infection is more common in children, adults can become infected as well, especially if they have close contact with someone who has impetigo or if they have certain risk factors that make them more susceptible to skin infections.

Factors that can increase the risk of impetigo in adults include:

● Weakened immune system: 

Adults with weakened immune systems, such as those with HIV/AIDS, undergoing chemotherapy, or taking immunosuppressive medications, are more susceptible to infections, including impetigo.

 Skin conditions:

 Certain pre-existing skin conditions, such as eczema, dermatitis, or psoriasis, can create breaks in the skin barrier, making it easier for bacteria to invade and cause impetigo.

● Occupations or activities: 

Adults who work in environments where they have frequent skin-to-skin contact with others, such as healthcare workers or athletes, may be at an increased risk of acquiring impetigo.

● Poor hygiene: 

Lack of proper hygiene practices, such as infrequent handwashing or sharing personal items like towels or razors, can increase the likelihood of impetigo transmission among adults.

The presentation and treatment of impetigo in adults are generally similar to those in children. It is important for adults with symptoms consistent with impetigo to seek medical attention for accurate diagnosis and appropriate treatment.



When do impetigo symptoms start?

The symptoms of impetigo can vary depending on the individual and the specific type of impetigo they have. Generally, the incubation period—the time between exposure to the bacteria and the onset of symptoms—ranges from one to 10 days. However, symptoms may appear sooner, especially if there is a pre-existing break in the skin.

Once the bacteria enter the body and infection sets in, the initial symptoms of impetigo may start to appear. These symptoms can include:

■ Redness: 

The affected area of the skin may become red and inflamed.

■ Small red bumps or blisters: 

These may develop into larger fluid-filled blisters.

■ Rupture and formation of crusts:

 The blisters may burst, releasing fluid that dries to form a honey-colored or yellowish-brown crust. The crusts are a characteristic feature of impetigo.

■ Itching: 

The affected area may be itchy, and scratching can spread the infection to other parts of the body.

The time it takes for the symptoms to progress through these stages can vary. In non-bullous impetigo, the initial red bumps or blisters may develop into crusts within a few days. In bullous impetigo, larger blisters may take longer to form and rupture.

It's important to note that impetigo is highly contagious, and the infection can spread to other parts of the body or to other individuals through direct contact. Prompt medical attention is advised if you suspect you or someone else has impetigo to initiate appropriate treatment and minimize the risk of further spread.


What does impetigo look like?

Impetigo typically presents with distinct visual characteristics that can help in its identification. The appearance can vary depending on the type of impetigo and the stage of the infection. Here are the common visual features:

Non-bullous impetigo:

● Small red bumps or blisters: 

Initially, you may notice small red bumps or fluid-filled blisters on the skin. They are often surrounded by an area of redness.

Rupture and formation of crusts:

 The blisters eventually burst and release fluid, forming a yellowish-brown crust or honey-colored scab. The crusts can be thin and fragile or thick and "stuck-on" in appearance.

The crusts gradually heal and slough off, leaving behind red or pinkish skin that may fade with time without scarring.

Bullous impetigo:

● Large fluid-filled blisters: 

Bullous impetigo is characterized by larger blisters that are filled with clear or cloudy fluid. These blisters are typically painless and may be surrounded by redness.

● Rupture and formation of crusts: 

The blisters may rupture, and the fluid inside may be absorbed, leaving behind a thin, flaccid skin covering or a large, denuded area.

Similar to non-bullous impetigo, the areas with ruptured blisters will eventually crust over and heal.

In both types, impetigo commonly affects the face, particularly around the nose and mouth, but it can occur on other parts of the body as well. It may spread through scratching or contact with the fluid or crusts. Itching is often present, and scratching can exacerbate the spread of the infection.

It's important to note that these visual characteristics are typical of impetigo, but they can vary depending on the severity of the infection, individual factors, and other associated skin conditions. If you suspect impetigo, it's recommended to consult a healthcare professional for an accurate diagnosis and appropriate treatment.



What causes impetigo?

Impetigo is caused by bacterial infection, primarily by two types of bacteria: Staphylococcus aureus (S. aureus) and Streptococcus pyogenes (group A streptococcus). These bacteria are commonly found on the skin and mucous membranes and can invade the body through breaks or cuts in the skin, insect bites, or areas of skin that are already irritated or inflamed.

There are several factors that contribute to the development of impetigo:

■ Skin injury or trauma: 

Any damage to the skin, such as cuts, scrapes, insect bites, or existing skin conditions like eczema or dermatitis, can create an entry point for bacteria and increase the risk of impetigo.

■ Poor hygiene:

 Insufficient personal hygiene practices, such as infrequent handwashing or not properly cleaning and caring for skin injuries, can increase the likelihood of bacterial colonization and impetigo.

■ Close contact with infected individuals:

 Impetigo is highly contagious, and direct contact with an infected person or sharing personal items such as towels, clothing, or bedding can facilitate the spread of the bacteria.

■ Crowded or unsanitary environments: 

Places with close quarters and inadequate hygiene facilities, such as schools, daycares, gyms, or correctional facilities, can be conducive to the spread of impetigo.

■ Weakened immune system:

 Individuals with weakened immune systems, such as those with HIV/AIDS, diabetes, or undergoing chemotherapy, are more susceptible to infections like impetigo.

It's worth noting that certain strains of S. aureus bacteria, particularly those that are resistant to antibiotics like methicillin-resistant Staphylococcus aureus (MRSA), can cause more severe and difficult-to-treat cases of impetigo. However, the majority of impetigo cases are caused by regular S. aureus or Streptococcus pyogenes bacteria.

Proper hygiene practices, such as frequent handwashing, keeping skin injuries clean and covered, and avoiding close contact with infected individuals, can help reduce the risk of impetigo.


Can stress cause impetigo in adults?

Stress itself does not directly cause impetigo. However, stress can weaken the immune system and make individuals more susceptible to infections, including impetigo. When the immune system is compromised due to stress, it becomes less effective at fighting off bacteria and other pathogens, which can increase the likelihood of developing impetigo.

Additionally, stress can indirectly contribute to the development or exacerbation of impetigo by affecting behaviors and habits. For example, stress can lead to poor hygiene practices or behaviors that increase the risk of skin injuries, such as excessive scratching or picking at the skin. These factors can create an environment that is more conducive to impetigo-causing bacteria.

It's important to note that while stress can be a contributing factor, impetigo is primarily caused by bacterial infection. The bacteria Staphylococcus aureus or Streptococcus pyogenes are the main culprits in impetigo cases. To prevent impetigo, it is crucial to practice good hygiene, maintain a healthy immune system, and seek prompt medical attention for any skin injuries or infections.


Is impetigo contagious?

Yes, impetigo is highly contagious. It is known for its contagious nature, and the infection can easily spread from person to person. The bacteria that cause impetigo can be transmitted through direct contact with infected skin, fluid from the blisters or crusts, or by touching contaminated objects such as towels, clothing, or bedding.

Some key points regarding the contagious nature of impetigo are:

● Person-to-person transmission: 

The infection can spread when there is close contact with an infected individual, such as through touching or sharing personal items.

● Contagiousness of open sores:

 Impetigo is most contagious when the blisters are open and oozing fluid. The bacteria are present in the fluid and crusts, and contact with these materials can facilitate transmission.

● Scratching and autoinoculation: 

Scratching the affected area can spread the infection to other parts of the body. This is known as autoinoculation. It can lead to the formation of new lesions on previously unaffected areas.

● Contaminated objects: 

Bacteria from the skin lesions can contaminate objects like towels, clothing, or toys. If others come into contact with these items, they can contract the infection.

To prevent the spread of impetigo, it is important to take precautionary measures, such as:

● Frequent handwashing with soap and water.

● Avoiding close contact with infected individuals until the infection has healed and crusts are no longer present.

● Keeping the affected areas clean and covered with bandages or dressings.

● Avoiding sharing personal items like towels, clothing, or bedding.

If you suspect that you or someone else has impetigo, it is advisable to consult a healthcare professional for proper diagnosis and treatment. They can provide guidance on managing the infection and preventing its spread.


How long is impetigo contagious?

The contagious period of impetigo can vary depending on various factors, including the individual, the effectiveness of treatment, and the specific circumstances of the infection. However, as a general guideline:

■ With appropriate treatment:

 Once treatment with antibiotics, either topical or oral, is initiated, impetigo becomes less contagious within 24 to 48 hours. It is recommended to continue treatment for the full prescribed duration, even if the symptoms improve, to ensure complete eradication of the bacteria.

■ Without treatment: 

If impetigo is left untreated, it can remain contagious for an extended period. In non-bullous impetigo, the infection may persist for several weeks or until the lesions have crusted over and healed completely. Bullous impetigo may take longer to resolve.

To minimize the risk of spreading impetigo, it is important to follow these precautions:

■ Practice good hygiene: 

Regularly wash hands with soap and water, especially after touching the affected areas. Use disposable tissues or the inside of your elbow to cover your mouth and nose when coughing or sneezing.

■ Keep the affected areas covered: 

Use dressings or bandages to cover open sores or crusts until they have healed. This can help prevent the spread of bacteria.

■ Avoid close contact: 

Minimize contact with others, especially in situations where there is direct skin-to-skin contact, until the infection is no longer contagious.

It is advisable to consult a healthcare professional for a proper diagnosis and guidance on the management of impetigo. They can provide specific recommendations based on the individual circumstances and help determine when it is safe to resume normal activities without posing a risk of contagion.


What are the complications of impetigo?

While impetigo is generally a mild and self-limiting condition, in some cases, it can lead to complications. These complications may occur due to the spread of bacteria or the body's immune response to the infection. Some potential complications of impetigo include:

● Cellulitis: 

This is a bacterial infection of the deeper layers of the skin and underlying tissue. It can occur when the bacteria from impetigo spread beyond the initial site of infection. Cellulitis is characterized by redness, swelling, warmth, and pain in the affected area.

● Ecthyma:

 Ecthyma is a deeper and more severe form of impetigo. It occurs when the infection penetrates the deeper layers of the skin, leading to the formation of painful ulcers covered by thick crusts. Ecthyma can cause scarring and may take longer to heal than typical impetigo.

● Lymphangitis and lymphadenitis: 

Lymphangitis is an inflammation of the lymphatic vessels, while lymphadenitis is an inflammation of the lymph nodes. These conditions can develop when the bacteria from impetigo enter the lymphatic system and cause an immune response. Symptoms may include red streaks extending from the affected area, swollen and tender lymph nodes, and systemic signs of infection like fever and malaise.

● Post-streptococcal complications:

 In rare cases, impetigo caused by Streptococcus pyogenes can lead to post-streptococcal complications. These complications may include acute glomerulonephritis (inflammation of the kidneys), rheumatic fever (an inflammatory disease affecting the heart, joints, skin, and other organs), or other systemic infections.

It's important to note that these complications are relatively uncommon and most cases of impetigo resolve without any significant long-term consequences. However, if you suspect impetigo or have concerns about complications, it is recommended to consult a healthcare professional for an accurate diagnosis and appropriate management. Prompt treatment and adherence to hygiene measures can help reduce the risk of complications.


How is impetigo diagnosed?

Impetigo is usually diagnosed based on its characteristic appearance and clinical presentation. A healthcare professional, such as a dermatologist or general practitioner, can typically diagnose impetigo through a physical examination. They will assess the appearance of the skin lesions and inquire about the symptoms and medical history of the individual.

In some cases, the healthcare professional may need to differentiate impetigo from other skin conditions with similar symptoms. They may consider performing additional tests or procedures, including:

■ Gram stain or bacterial culture: 

A swab may be taken from the affected area to collect a sample of the fluid or crust for laboratory testing. This can help identify the specific bacteria causing the infection and determine the most effective antibiotic treatment.

■ Dermoscopy: 

Dermoscopy is a non-invasive procedure that uses a handheld device to examine the skin at a magnified level. It can help the healthcare professional evaluate the characteristics of the lesions more closely, such as the presence of crusts, blisters, or specific patterns associated with impetigo.

It's worth noting that in most cases, a physical examination is sufficient for a diagnosis of impetigo. Laboratory tests are not always required unless the diagnosis is uncertain or if there is a need to identify the specific bacteria causing the infection, especially in cases that are severe or unresponsive to treatment.

If you suspect impetigo, it is important to consult a healthcare professional for an accurate diagnosis and appropriate treatment. They can provide guidance based on the individual's specific condition and help differentiate impetigo from other skin conditions with similar symptoms.


How do you treat impetigo?

Impetigo is typically treated with antibiotics to eradicate the bacterial infection. The specific treatment approach may vary depending on the severity of the infection, the age of the individual, and other individual factors. The two main forms of treatment for impetigo are:

● Topical antibiotics:

 Mild cases of impetigo can often be effectively treated with topical antibiotics. These are antibiotics applied directly to the affected skin. Commonly used topical antibiotics include mupirocin and retapamulin. It's important to follow the instructions provided by the healthcare professional regarding the application and duration of treatment.

● Oral antibiotics: 

More severe or widespread cases of impetigo, as well as those caused by certain antibiotic-resistant bacteria, may require oral antibiotics. These antibiotics are taken by mouth to target the infection throughout the body. Examples of oral antibiotics commonly used for impetigo include dicloxacillin, cephalexin, or erythromycin. The specific antibiotic and dosage will be determined by the healthcare professional based on the individual's condition.

In addition to antibiotics, the following measures can help manage and prevent the spread of impetigo:

● Gently cleanse the affected areas with mild soap and water to remove crusts and debris. Avoid scrubbing, as it may cause further irritation.

● Keep the affected areas clean and dry.

● Cover open sores or crusted areas with sterile gauze or bandages to prevent scratching and minimize the risk of spreading the infection.

● Avoid scratching or picking at the lesions to prevent further spread of bacteria.

Practice good hygiene, including regular handwashing with soap and water.

● Avoid close contact with others, especially until the infection is no longer contagious.

It's important to complete the full course of antibiotics as prescribed, even if the symptoms improve before the treatment is finished. This helps ensure the complete eradication of the bacteria and reduces the risk of recurrence or antibiotic resistance.

If you suspect impetigo or have been diagnosed with it, it is recommended to consult a healthcare professional for proper evaluation and guidance regarding the appropriate treatment options for your specific condition.


How to get rid of impetigo in 24 hours

It is important to note that impetigo typically requires a course of antibiotic treatment to effectively eliminate the infection. While it may not be possible to completely get rid of impetigo within 24 hours, there are steps you can take to manage the condition and promote healing:

■ Consult a healthcare professional: 

Seek medical advice as soon as possible to get a proper diagnosis and appropriate treatment. A healthcare professional can prescribe antibiotics or recommend suitable over-the-counter treatments based on the severity and individual factors.

■ Follow prescribed treatment:

 If you have already been prescribed antibiotics, ensure that you take them as directed by your healthcare professional. Complete the full course of treatment, even if the symptoms improve before the medication is finished.

■ Keep the affected areas clean: 

Gently cleanse the impetigo lesions with mild soap and water. Avoid scrubbing, as it can cause further irritation. Pat dry the skin carefully after washing.

■ Apply topical antibiotics: 

If prescribed, use topical antibiotic ointments, such as mupirocin or retapamulin, as instructed. Apply a thin layer to the affected areas according to the recommended frequency.

■ Avoid scratching or picking at the lesions:

 Scratching or picking can worsen the infection and contribute to its spread. Keep nails trimmed short and consider covering the lesions with sterile gauze or bandages to prevent scratching.

■ Practice good hygiene: 

Wash your hands frequently with soap and water, especially after touching the affected areas. Avoid sharing personal items like towels, clothing, or bedding to prevent spreading the infection.

■ Follow additional recommendations:

 Follow any specific advice provided by your healthcare professional, such as avoiding certain activities or taking measures to prevent the infection from spreading.

While these measures can help manage impetigo and promote healing, complete resolution within 24 hours may not be feasible. It typically takes several days to a couple of weeks for impetigo to heal with appropriate treatment. It's crucial to consult a healthcare professional for personalized advice and guidance regarding your specific situation.


What impetigo treatments are over-the-counter?

In most cases, impetigo treatment requires prescription medications, such as topical or oral antibiotics, to effectively eliminate the bacterial infection. However, there are some over-the-counter (OTC) treatments that can help manage the symptoms and promote healing. These OTC options may be used as adjuncts to prescribed treatments or for mild cases of impetigo. It's important to consult with a healthcare professional before using any OTC treatments for impetigo. Here are some OTC options that may be considered:

● Antiseptic ointments:

 OTC antiseptic ointments containing ingredients like povidone-iodine or hydrogen peroxide can be applied topically to help cleanse the affected area and prevent infection.

● Topical wound care products: 

OTC wound care products, such as hydrogels, hydrocolloids, or silicone-based dressings, can provide a moist healing environment and promote wound healing. They may help protect the impetigo sores and enhance the effectiveness of prescribed antibiotics.

● Medicated cleansers:

 There are OTC cleansers available that contain ingredients like benzoyl peroxide or chlorhexidine. These cleansers can help remove crusts and debris from impetigo lesions and provide additional antimicrobial activity.

● Pain relief: 

Over-the-counter pain relievers like acetaminophen or ibuprofen can help alleviate any discomfort or pain associated with impetigo.

It's important to note that while these OTC treatments can assist in symptom management, they may not be sufficient to completely eliminate the bacterial infection. It is crucial to consult a healthcare professional for a proper diagnosis and appropriate treatment recommendations. They can assess the severity of the impetigo and determine if prescription medications are necessary.

Additionally, following good hygiene practices, keeping the affected areas clean and dry, and avoiding scratching or picking at the lesions are important self-care measures that can support the healing process.


Will impetigo go away on its own?

In some cases, impetigo may resolve on its own without specific treatment. However, it is generally recommended to seek medical attention and receive appropriate treatment to effectively manage the infection and prevent complications.

Leaving impetigo untreated can prolong the duration of the infection, increase the risk of spreading the bacteria to others, and potentially lead to complications such as cellulitis or the development of more severe forms of impetigo like ecthyma. Treatment with antibiotics helps to eradicate the bacteria causing the infection, reduce symptoms, and promote faster healing.

While impetigo may show signs of improvement over time without treatment, it is important to note that the infection can still persist or worsen. It is advisable to consult a healthcare professional for a proper diagnosis and treatment plan. They can assess the severity of the impetigo and provide appropriate guidance based on your specific condition. Following the prescribed treatment plan will help ensure the best possible outcome and reduce the risk of complications.


Can I prevent impetigo?

While it may not be possible to completely eliminate the risk of impetigo, there are steps you can take to reduce the likelihood of acquiring or spreading the infection. Here are some preventive measures:

■ Maintain good hygiene: 

Practice regular handwashing with soap and water, especially before and after touching the skin, using the bathroom, or handling items that may come into contact with your face or body. Encourage proper hand hygiene in children as well.

■ Keep skin clean and dry: 

Proper skin hygiene can help prevent the growth of bacteria. Cleanse your skin regularly with mild soap and water, especially after activities that cause sweating or involve contact with potentially contaminated surfaces.

■ Avoid close contact with infected individuals:

 Impetigo is highly contagious, so it's important to avoid close contact with individuals who have active impetigo lesions or who are known to be infected. This includes avoiding sharing personal items like towels, clothing, or bedding.

■ Cover open sores and lesions: 

If you have open wounds or sores, such as cuts, scratches, or insect bites, keep them covered with clean dressings or bandages until they have fully healed. This can help prevent bacteria from entering and causing infection.

■ Promote a clean environment:

 Keep shared spaces, such as homes, schools, or daycare facilities, clean and hygienic. Regularly clean and disinfect surfaces and objects that come into contact with multiple people, such as toys, sports equipment, and countertops.

■ Promptly treat skin conditions:

 If you have any skin conditions that can create openings or compromise the integrity of the skin, such as eczema or dermatitis, follow appropriate treatment plans to manage and minimize the risk of infection.

■ Maintain overall health and immunity: 

A strong immune system can help protect against infections. Maintain a healthy lifestyle, including a balanced diet, regular exercise, adequate sleep, and stress management, to support your immune system's function.

While these preventive measures can help reduce the risk of impetigo, it's important to note that they may not guarantee complete prevention. If you suspect impetigo or have concerns about prevention, it's advisable to consult a healthcare professional for personalized advice and guidance based on your specific circumstances.


What’s the outlook for someone who gets impetigo?

The outlook for someone who gets impetigo is generally good, as impetigo is a common and usually a mild infection that tends to resolve with appropriate treatment. With timely and proper management, most cases of impetigo improve within a few days to a couple of weeks.

Treatment with antibiotics, either topical or oral, helps to eliminate the bacterial infection and promote healing. It is important to complete the full course of antibiotics as prescribed by a healthcare professional, even if the symptoms improve before the treatment is finished. This helps to ensure complete eradication of the bacteria and reduces the risk of recurrence or antibiotic resistance.

Prompt treatment also reduces the risk of complications associated with impetigo, such as the spread of infection to other areas of the body or the development of more severe forms of impetigo like ecthyma. Complications from impetigo are relatively uncommon, especially with appropriate and timely management.

Following good hygiene practices, such as regular handwashing, keeping the affected areas clean and dry, and avoiding scratching or picking at the lesions, can also contribute to the healing process and prevent the spread of infection.

It's important to consult a healthcare professional for a proper diagnosis and treatment plan if you suspect impetigo. They can provide specific guidance based on the individual's condition and help monitor the progress of the infection. Most individuals with impetigo can expect a full recovery with appropriate treatment and self-care measures.


How long does impetigo last?

The duration of impetigo can vary depending on various factors, including the individual, the severity of the infection, and the effectiveness of the treatment. With proper treatment, impetigo often begins to improve within a few days, and complete resolution typically occurs within one to two weeks.

Here are some general timelines for impetigo:

● Treatment response: 

With appropriate antibiotic treatment, there is usually an improvement in symptoms within a few days. The redness, swelling, and formation of new blisters or sores should begin to subside.

● Healing of existing sores: 

The existing impetigo sores or blisters may take around one to two weeks to heal completely. As the infection clears, the crusts or scabs formed over the sores may gradually slough off, revealing healed skin underneath.

● Contagious period: 

Impetigo is contagious until the sores have crusted over or healed completely. With proper treatment and good hygiene practices, the contagious period can be significantly reduced, typically within a few days of starting antibiotics.

It's important to note that individual responses to treatment can vary, and the timeline for healing may be influenced by factors such as the extent of the infection, the presence of any complications, and the overall health and immune response of the individual.

It's advisable to follow the prescribed treatment plan, complete the full course of antibiotics, and practice good hygiene to help promote healing and prevent the spread of impetigo. If the impetigo does not show signs of improvement or worsens despite treatment, it is recommended to consult a healthcare professional for further evaluation and guidance.


How long does impetigo live on surfaces?

Impetigo is caused by bacteria, most commonly Staphylococcus aureus or Streptococcus pyogenes. These bacteria can survive on surfaces for varying durations, but the risk of transmission from contaminated surfaces is generally considered low. Here are some general guidelines regarding the survival of impetigo-causing bacteria on surfaces:

■ Staphylococcus aureus: 

Staphylococcus aureus, including the strains that cause impetigo, can survive on surfaces for a few hours to several days. The survival time can be influenced by factors such as temperature, humidity, and the type of surface. However, it's important to note that the presence of the bacteria on a surface does not necessarily mean it will cause an infection upon contact.

■ Streptococcus pyogenes: 

Streptococcus pyogenes, another common bacteria causing impetigo, can survive on surfaces for a shorter duration compared to Staphylococcus aureus. While it can vary, streptococcal bacteria generally survive for a few minutes to a few hours outside the human body.

It's worth emphasizing that direct person-to-person contact is the primary mode of transmission for impetigo. The bacteria typically spread through direct contact with the infected skin lesions or through contact with items contaminated by the bacteria, such as towels, clothing, or bedding. The risk of transmission from surfaces can be minimized by practicing good hygiene, such as regular handwashing and avoiding sharing personal items.

To prevent the spread of impetigo, it is recommended to follow proper hygiene practices, including frequent handwashing with soap and water, using separate towels and clothing, and regularly cleaning and disinfecting surfaces. These measures help reduce the risk of contamination and transmission of impetigo-causing bacteria.

If you have concerns about specific surfaces or items that may be contaminated, it is advisable to clean and disinfect them according to appropriate guidelines or seek guidance from a healthcare professional or local health authorities.


When can I go back to work/school?

The timing for returning to work or school when you have impetigo may vary depending on several factors, including the severity of the infection, the effectiveness of the treatment, and any specific guidelines provided by your healthcare professional or local health authorities. Here are some general considerations:

● Contagious period: 

Impetigo is highly contagious until the sores have crusted over or healed completely. During this period, it is important to avoid close contact with others to prevent the spread of the infection. Typically, with proper treatment and good hygiene practices, the contagious period can be significantly reduced, typically within a few days of starting antibiotics.

● Follow healthcare professional's advice:

 It is recommended to follow the advice and guidance provided by your healthcare professional regarding when it is safe to return to work or school. They can evaluate the progress of the infection, assess the risk of transmission, and provide specific recommendations based on your individual case.

● Consideration of treatment response: 

The response to treatment and the improvement of symptoms can also be a factor in determining when it is appropriate to return to work or school. If there is a significant improvement in symptoms, such as reduced redness, swelling, and crusting of the sores, it may indicate that the infection is under control.

● Good hygiene practices: 

Maintaining good hygiene practices is important when returning to work or school. Ensure that you continue practicing proper handwashing, cover any remaining sores or scabs with sterile dressings or bandages, and avoid close contact with individuals who may be more susceptible to infections, such as those with weakened immune systems.

It is essential to remember that specific guidelines and requirements may vary depending on the workplace, school, or local health authorities. It's important to communicate with your employer, school administration, or relevant authorities to understand any specific policies or recommendations regarding returning to work or school while recovering from impetigo.

Ultimately, the decision to return to work or school should prioritize the well-being of yourself and others, and it should be based on appropriate medical advice and consideration of the risk of transmission.


How can I take care of myself if I have impetigo?

If you have impetigo, there are several self-care measures you can take to help manage the condition, promote healing, and prevent the spread of infection. Here are some tips for self-care when you have impetigo:

■ Follow prescribed treatment:

 It is important to follow the treatment plan prescribed by your healthcare professional. This may include the use of topical or oral antibiotics. Take the medications as directed and complete the full course of treatment, even if the symptoms improve before the medication is finished.

■ Keep the affected areas clean: 

Gently cleanse the impetigo lesions with mild soap and water. Avoid scrubbing, as it can cause further irritation. Pat dry the skin carefully after washing. Avoid sharing towels, washcloths, or other personal items with others to prevent the spread of bacteria.

■ Apply prescribed topical treatments:

 If your healthcare professional has prescribed topical antibiotic ointments, apply them as instructed. Follow the recommended frequency and apply a thin layer to the affected areas.

■ Avoid scratching or picking at the lesions: 

Scratching or picking at impetigo lesions can worsen the infection and contribute to its spread. Keep your nails trimmed short to minimize the risk of accidental scratching. Consider covering the lesions with sterile gauze or bandages to prevent scratching and protect the skin.

■ Practice good hygiene: 

Wash your hands frequently with soap and water, especially after touching the affected areas. This helps prevent the spread of bacteria to other parts of your body or to other individuals. Avoid close contact with others, especially during the contagious period.

■ Avoid spreading the infection: 

To prevent the spread of impetigo, avoid sharing personal items such as towels, clothing, bedding, or razors. Wash and dry your clothes, towels, and bedding regularly in hot water and use a hot dryer to kill any bacteria.

● Comfort measures: 

If the impetigo sores are itchy or uncomfortable, you can use cool compresses or take over-the-counter pain relievers as recommended by your healthcare professional to alleviate symptoms.

■ Follow-up with your healthcare professional:

 Keep any scheduled follow-up appointments with your healthcare professional to monitor the progress of the infection and ensure proper healing.

Remember, it's important to consult a healthcare professional for a proper diagnosis and individualized treatment plan. They can provide specific guidance based on the severity and characteristics of your impetigo infection.