Impetigo in Babies: How to Identify, Treat & Prevent Spreading

Impetigo is one of many rashes that can appear on a baby’s skin. It typically appears on the face or in the diaper area, though it can happen anywhere on the body. Impetigo rash often begins as small red spots and may develop into a honey-colored crusted rash. 

Here’s what parents should know about this common and treatable skin condition. 

What is Impetigo?

Impetigo is a common bacterial skin infection that affects babies and young children, particularly during infancy and toddlerhood. It’s caused by bacteria—most often Staphylococcus aureus or Streptococcus—that enter the skin through small breaks, irritation, or areas of inflammation.

Is Impetigo Serious?

While impetigo can look uncomfortable or concerning, it’s generally mild and responds well to treatment when identified early.

In rare cases, if impetigo is left untreated, the infection can spread deeper into the skin and develop into a more serious form called ecthyma. 

Ecthyma causes deeper sores that may take longer to heal and can sometimes leave scars. This progression is uncommon in otherwise healthy babies and is unlikely when impetigo is treated promptly.

Symptoms and Causes of Impetigo

Common Symptoms

An impetigo rash may include:

• Red spots or patches that grow or spread
• Small blisters or sores that may ooze
• Yellow or golden crusting as sores dry
• Mild itching or discomfort

Unlike some viral illnesses, impetigo usually does not cause fever or make babies feel unwell.

What Causes Impetigo?

Impetigo develops when bacteria enter the skin through:

• Minor cuts or scratches
• Bug bites
• Existing rashes like eczema or diaper rash
• Skin irritation from drool, wiping, or friction

Identifying Impetigo on the Body and Face

Impetigo often appears on areas that are frequently touched, wiped, or exposed to moisture.

Face and Body

On the face, impetigo commonly appears around the nose, mouth, and cheeks. Parents often notice what looks like a face rash with yellow crust, sometimes described as a honey-colored crusted facial rash. 

On other parts of the body, it may show up on the arms, legs, or torso, especially if the skin has been scratched or irritated.

Impetigo in the Diaper Area

Babies can also develop impetigo diaper rash, which may be mistaken for a standard diaper rash — though it usually develops some telltale signs.

How It Looks

An impetigo diaper rash may:

• Appear red, shiny, or inflamed
• Include blisters or open sores
• Develop yellow crusting along the edges
• Spread quickly despite regular diaper care

If a diaper rash doesn’t improve or seems to worsen rapidly, impetigo may be the cause.

Treatment Options for Impetigo

Impetigo is a bacterial infection, which means it typically requires medical treatment to fully clear. The exact treatment will depend on how widespread the rash is and where it appears on the body, including whether it affects the diaper area.

Medical Treatment

It’s important to see your pediatrician if you suspect impetigo. They may recommend:

• Topical antibiotic ointments for mild or localized impetigo rashes
• Oral antibiotics if the infection is more widespread, persistent, or not responding to topical treatment

Gentle Skin Care at Home

Alongside prescribed treatment, supportive care can help soothe the skin and promote healing:

• Gently clean affected areas with warm water
• Pat the skin dry instead of rubbing
• Avoid fragranced soaps, wipes, or products that may irritate the skin
• Keep your baby’s nails trimmed to reduce scratching

Special Considerations for Impetigo Diaper Rash

When impetigo affects the diaper region, extra care helps reduce irritation and support healing:

• Change diapers frequently to keep the area dry
• Allow short periods of diaper-free time when possible
• Avoid scrubbing or over-cleansing the skin
• Use soft, breathable diapers and clothing

Alongside prescribed treatment, a barrier cream can help shield nearby skin from irritation. 

How Common Is Impetigo in Babies?

Impetigo is one of the most common skin infections in young children, especially under the age of five. It tends to be more frequent:

• In warm or humid weather
• During cold and flu season, when runny noses and frequent wiping irritate the skin
• In daycare or group settings

Seeing impetigo on your baby doesn’t mean hygiene is lacking. Because babies have more sensitive skin and spend a lot of time drooling, wearing diapers, and being wiped or cleaned, their skin barrier is easier for bacteria to penetrate, which can lead to impetigo.

Difference Between Impetigo and Hand, Foot, and Mouth Disease

Parents often wonder about the difference between impetigo and hand, foot, and mouth disease, as both can involve sores.

• Impetigo is a bacterial infection, and sores and crusting are exclusively on the skin. It responds well to antibiotics. 
• Hand, foot, and mouth disease is a viral illness associated with rashes inside the mouth, as well as on hands and feet. Unlike impetigo, it often presents with a fever.

A pediatrician can easily distinguish between the two.

Is Impetigo Contagious?

Yes, impetigo is contagious, but it’s manageable. It spreads through:

• Direct skin-to-skin contact
• Shared towels, washcloths, or bedding
• Touching infected skin and then another area

Once treatment begins and sores crust over, the risk of spreading usually decreases quickly. 

To help limit spread:

• Wash hands often
• Keep your baby’s nails short
• Wash clothes and bedding in hot water
• Use separate towels and blankets
• Avoid touching or picking at sores
• Use a cotton round when applying ointment to the rash

Understanding Impetigo

While seeing an impetigo rash on your baby can be unsettling, impetigo is common, treatable, and usually mild. With early attention and gentle care, most babies recover quickly and comfortably.

If you ever feel unsure, trust your instincts and consult your pediatrician. Knowing what to look for is the first step—and now you know!