Introduction:
Impetigo is a very common bacterial skin infection and is most common among preschoolers and school-going kids. Blisters or sores might develop on the skin; for this reason, the infection can be extremely painful for little ones. Bacteria mainly enter through a break in the skin, which may allow bacteria to invade the skin. After the invasion, bacteria multiply in deep skin layers, leading to blister formation. While it may seem very distressing, impetigo is usually harmless and, in most cases, clear quickly with proper antibiotic treatment. Reassure your child that things should turn out well, and keep watch over him or her to ensure that the infection heals properly.
What Causes Impetigo?
Two types of bacteria typically cause impetigo - Staphylococcus aureus and group A Streptococcus, the same bacteria responsible for strep throat. In recent years, Methicillin-resistant Staphylococcus aureus (MRSA) has also become a significant cause of impetigo.
Children exposed to irritated skin by eczema (patches of itchy and dry skin), poison ivy, insect bites, and minor cuts and scrapes have a higher risk of impetigo. The infection is caused by the usual harmless flora on the skin, which enters through the openings of the irritations. For instance, scratching due to such itch-inducing irritants as poison ivy invites bacteria into the skin and leads to impetigo. Warm and humid climates increase the risk. It encourages the kids to keep their hands and faces clean, which helps reduce the chances of infection and keeps the skin healthy.
Is Impetigo Contagious?
Yes, impetigo is contagious and can spread to anyone who comes into contact with infected skin or items that have touched it, such as clothing, towels, and bed linens. The infection can be itchy, so children may inadvertently spread it by scratching and touching other body parts.
What Are the Types of Impetigo?
The classic forms of impetigo include non-bullous (crusted), bullous (large blisters), and ecthyma (ulcer) types.
1. Non-Bullous Type: It usually starts as small fluid-filled blisters that quickly rupture, leaving moist, red patches of exposed skin. These areas tend to ooze a clear or yellowish fluid before forming a distinctive golden-yellow or honey-colored crust, making it look like a surface coated with brown sugar. This crusting is the hallmark of an impetigo infection, as healing depicts nothing more than just going through the stages of crusting over and peeling off.
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Staphylococcus causes this.
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Trauma is the most common predisposing factor.
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Lesions preceding impetigo are abrasions, insect bites, chickenpox (a viral infection causing blisters and later scab over the skin), scabies (rashes and itching of the skin due to mites), burns, etc.
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Lesions are mainly vesicles or pustules which develop honey-colored crusting.
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The lesions may spread to other parts of the body.
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Other associated features are erythema (redness), pruritus (itching), pain, and adenopathy (enlargement of glands).
2. Bullous Type: The hallmark of bullous impetigo is the development of bigger blisters that are filled with fluid and initially clear but eventually turn hazy. These blisters, in contrast to non-bullous impetigo, typically stay on the skin for a longer amount of time before popping. They may leave behind fluid-oozing, raw, red regions when they burst.
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Mainly occurs in infants and children.
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Flaccid transparent bullae (blister-like fluid-filled lesions) occur over the face, trunk, extremities, and abdomen.
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Lesions of neonatal bullous impetigo begin in the diaper area.
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Impetigo is usually diagnosed clinically after a thorough history and examination.
3. Ecthyma (Ulcers): Some cases of impetigo may appear like "punched-out" ulcers, although this is much more so in the case of widespread infections. There is a characteristic appearance of well-defined shallow lesions. There often is a yellowish crust with red, inflamed edges that give the sore a sharply demarcated appearance.
How to Treat Impetigo?
Impetigo is typically treated with antibiotics, topical cream, ointment, or oral medication, depending on the extent of the infection. If the infection is under control, children can return to school or daycare 24 hours after starting treatment.
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Mild Cases (Non-Bullous Impetigo or Small Areas):
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Treated with antibiotic ointment applied to the affected skin for five days.
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Healing should start within a few days of treatment.
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More Severe or Widespread Cases:
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If the infection spreads or topical treatment is ineffective, an oral antibiotic (pill or liquid) is prescribed for seven to ten days.
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It is crucial to follow the prescribed dosage to prevent complications like deeper skin infections, rheumatic fever (develops after streptococcal infection and can affect the heart, bones, brain, and skin), or kidney disease.
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Skin Care During Healing:
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Clean the affected area daily with clean gauze and antiseptic soap.
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Soak crusted areas in warm, soapy water to gently loosen and remove crusts, though complete removal is unnecessary.
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Preventing Spread:
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Cover infected areas with gauze or a loose bandage.
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Keep your child’s nails short and clean to avoid scratching, which can worsen the infection.
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Home Care for Impetigo:
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You should clean the affected area with soap and water.
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Do not scratch or pick the fluid-filled lesions.
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As the lesions are contagious, the child should wear separate clothes.
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In the case of adults, do not shave around the infected areas as it may spread the infection.
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Keep the skin clean and dry and avoid further injury.
How to Prevent Impetigo?
To help prevent impetigo and stop it from spreading to others, consider the following steps:
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Keep your child at home for 24 hours after starting antibiotic treatment. After this period, they can return to daycare or school, provided any draining sores are covered with bandages.
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Ensure that everyone in your household washes their hands thoroughly using soap and water, scrubbing well.
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Avoid sharing personal items like towels or washcloths.
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Encourage each family member to use their towels for drying hands and after bathing to prevent cross-contamination.
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Keep your child's fingernails short to reduce the likelihood of scratching and spreading the infection.
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Instruct kids to do frequent, thorough hand washes and regular baths or showers.
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Look for wounds, scratches, insect bites, and regions with rashes or eczema, and tend to them by covering and cleaning them.
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Keep all surfaces in the house clean, particularly in the kitchen, and wash the afflicted person's clothes, towels, and linens in hot water.
When to Call the Doctor?
Contact the doctor if your children show signs of impetigo, especially if they have been in close contact with someone with the infection. If your child is already receiving treatment for impetigo, monitor the sores closely and contact the doctor if there is no improvement after three days of treatment or if a fever occurs. Additionally, if the area around the rash becomes red, warm, or tender to the touch, seek medical attention immediately.
What Are the Complications?
Complications rarely occur in impetigo; the most common complication is worsening or spreading the infection. Additionally, impetigo caused by beta-hemolytic streptococcus bacteria can lead to serious conditions such as:
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Kidney damage, known as poststreptococcal glomerulonephritis.
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Fever and joint issues can develop into rheumatic fever.
Conclusion
In summary, impetigo is a common bacterial skin infection mainly affecting children. It is typified by painful, red sores that have the potential to drain and crust over. Antibiotics must be taken promptly, even though the infection is not dangerous, to avoid complications and stop it from spreading to other people. Parents and caregivers play a critical role in managing impetigo by practicing excellent hygiene, such as frequent hand washing and covering and cleaning the affected region. Children who receive the right care and attention can recover completely, and taking preventative steps can help shield the afflicted kid and others from getting sick in the future.
