Impetigo
A contagious skin infection causing red sores or blisters that burst and leave golden crusts, usually around the nose and mouth. Common in children but adults can get it too.
How long does a course usually last?
Hydrogen peroxide 1% cream is used for 5 to 7 days. If an antibiotic cream or tablets are needed, the course is usually 5 to 7 days.
Your prescriber sets the exact length for you. Finish the course you're given unless a healthcare professional tells you to stop.
Never re-use antibiotics
- Do not re-use this treatment, or take leftover or someone else's antibiotics, unless a healthcare professional has expressly told you to.
- The right antibiotic, dose and length depend on your current infection, which can be different from last time.
- Re-using antibiotics can be ineffective, cause side effects, and drives antibiotic resistance. Return leftovers to any pharmacy for safe disposal.
What the guidance says
For small, localised patches, NICE says the first treatment is usually hydrogen peroxide 1% cream, an antiseptic rather than an antibiotic, applied 2 to 3 times a day for 5 to 7 days. An antibiotic cream is used if the antiseptic is not suitable. If the impetigo is widespread, a short course of antibiotic cream or tablets is offered.
Impetigo spreads easily. Wash your hands regularly, do not touch or scratch the sores, do not share towels or facecloths, and wash clothing and bedding on a hot wash. Stay away from work, school or childcare until the sores have healed and crusted over, or until 48 hours after starting treatment.
Seek medical help if symptoms worsen quickly, do not start to improve after treatment, or keep coming back.
Based on NICE guidance — always follow your own prescriber's advice.
Antibiotics sometimes prescribed
When to seek help
If you are getting worse, develop a high fever, feel confused or breathless, or your symptoms are not improving as expected, contact your doctor or call NHS 111. See the warning signs page.