Skin infection guide · practical treatment

Impetigo: What It Looks Like, How It Spreads, and When to Treat It

Impetigo is common, contagious, and usually treatable once you recognize it early. Here’s the plain-language version: what it looks like, what to do at home, and when you need prescription treatment.

Visual guide for impetigo and skin infection treatment

Notice the pattern • slow the spread • know when to get help

If you have a child with crusted sores around the nose or mouth, or you’ve noticed small red bumps that turned into honey-colored scabs, impetigo belongs on the short list.

It often starts small. Then it spreads fast if people keep touching it, sharing towels, or scratching the area. That is why impetigo is one of those infections where early treatment matters.

If you want the broader overview of skin infections, see our skin infection guide. If you’ve already been told mupirocin is the right option, our mupirocin guide explains how to use it.

What impetigo usually looks like

Honey-colored crust

This is the classic sign. A sore or blister breaks open and leaves a sticky yellow or golden crust behind.

Small red bumps or blisters

It can start as a tiny red spot, then become a blister or superficial sore before crusting over.

Common around nose and mouth

Impetigo often shows up on the face, but it can appear anywhere there is broken skin, a bug bite, or a scratch.

Simple timeline: what happens if you wait too long

The longer the infection stays open and uncovered, the easier it is to spread to other people or to other areas of the skin.

1

Starts as a small sore

A scratch, bite, or irritated patch gets infected.

2

Crust forms

The classic honey-colored crust appears. This is often when people realize something is wrong.

3

Spreads by touch

It can spread to nearby skin, towels, bedding, and other family members if precautions are not taken.

4

Treatment becomes more important

Topical or oral antibiotics may be needed depending on how widespread it is.

What to do at home

  • Wash gently with soap and water.
  • Keep it covered if it’s draining or easy to scratch.
  • Do not pick off crusts.
  • Do not share towels, razors, or pillowcases.
  • Wash hands after touching the area.

When mupirocin may help

For limited, superficial impetigo, a topical antibiotic may be appropriate. That’s where mupirocin often comes in.

Best for small areas

Small localized impetigo is more likely to respond to topical treatment alone.

Not for deep or spreading infection

If the infection is getting worse, covering a large area, or not improving, it needs a clinician review.

Red flags: get medical help sooner

  • Fever or feeling generally sick
  • Rapid spreading redness
  • Pain that seems out of proportion
  • Swelling around the eyes
  • Not improving after a few days of treatment

Not sure if it’s impetigo?

If it’s spreading, crusting, or not clearly getting better, it’s worth getting a real clinical look at it.

Text Chris · $59

Educational content only • not a substitute for medical care

Medical disclaimer: This article is for educational purposes only and does not replace professional medical advice. If symptoms are severe, rapidly worsening, or involve fever or swelling around the eyes, get medical help promptly.

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