Impetigo in Children: How to Manage This Contagious Skin Infection
Every summer, many parents receive a notice from their child's daycare or preschool warning that impetigo is going around. Impetigo is a common bacterial skin infection caused by staphylococcus or streptococcus bacteria, and it appears most often in infants and school-age children. Because it spreads easily in settings where children are in close contact, such as daycare centers and schools, responding early matters.
What symptoms mark the start of impetigo?
Impetigo usually begins as small blisters or red patches, most often around the mouth and nose or on exposed areas of the arms and legs. Over time these blisters tend to break open and form a characteristic yellow or brownish crust. Itching is common, and children scratching the area unconsciously can spread lesions to other parts of the body. There are two main forms — bullous and non-bullous impetigo — with the non-bullous type being more frequently observed. Fever or systemic symptoms are usually absent, but if the skin around a lesion becomes noticeably red, swollen, or increasingly painful, a secondary infection cannot be ruled out.
Why does this occur so often in children?
Children tend to have a relatively thinner skin barrier than adults, and the skin surface is often already compromised by conditions like atopic dermatitis, insect bites, cuts, or eczema. Bacteria frequently enter through these already-damaged areas. Environments with close contact, such as daycare centers and playgrounds, along with infrequent handwashing and shared items like toys or towels, also contribute to how the infection spreads. During the hot summer months, sweat and humidity can weaken the skin barrier further, which tends to increase how often this occurs.
How can spreading it to other children be prevented?
Impetigo can spread not only through direct skin contact but also indirectly through towels, clothing, and toys. If infection is suspected, gently cleaning the affected area and covering it with breathable gauze can help minimize direct contact with others. Keeping nails trimmed short reduces scratching that spreads lesions, and reinforcing handwashing habits is also important. Personal towels and bedding should be kept separate from other family members and washed frequently. Since many daycare centers and schools have their own attendance restriction policies during outbreaks, it is advisable to inform teachers or staff of the situation in advance and follow their guidance.
What should be kept in mind when managing this at home?
Keeping the affected area clean and minimizing irritation are the basics. Forcibly picking at crusts or touching the lesion with hands should be avoided, as this can worsen the condition and spread bacteria to other areas. Gentle cleansing with lukewarm water is generally recommended, while harsh soaps or alcohol-based antiseptics should be used with caution, as they can further damage the skin barrier. If symptoms persist for several days, the lesion spreads, or fever develops, it is safer to visit a medical facility rather than relying solely on home care.
What happens if it goes untreated?
Most cases of impetigo improve with appropriate care and leave no lasting effects. However, if left unaddressed, lesions can spread to other parts of the body, and in rare cases bacteria may penetrate deeper tissue, potentially leading to secondary complications such as cellulitis. Since individual cases vary, if symptoms are pronounced or worsening, it is advisable to have a specialist confirm the exact condition rather than making assumptions on your own.
This information is for general reference only. An accurate diagnosis and treatment require consultation with a board-certified dermatologist.
Find more information on our skin health blog.