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Impetigo

(Non-bullous impetigo, for adults and children aged 1 year and over)

Does the patient meet ANY of the following:
  • Risk of deterioration, red flags or serious illness
  • Immunosuppressed and infection is widespread
  • Severe complications suspected (e.g. deeper soft tissue infection)
Gateway Point
Consider calculating NEWS2 Score ahead of signposting patient to A&E or calling 999.

Does the patient follow typical progression of impetigo features?

• Initial lesion is a very thin-walled vesicle on an erythematous base
• Exudate dries to form golden yellow or yellow-brown crusts
• Common on exposed skin on the face, limbs and flexures
• Satellite lesions may develop following autoinoculation
Consider alternative diagnosis and proceed appropriately.
How many lesions/clusters are present?
Localised non-bullous impetigo
Offer hydrogen peroxide 1% cream for 5 days plus self-care.
If unsuitable/ineffective
Offer fusidic acid cream for 5 days plus self-care.
Widespread non-bullous impetigo
Offer flucloxacillin (if no allergy) for 5 days plus self-care.
Reported penicillin allergy?
Offer clarithromycin for 5 days plus self-care.
If pregnant
Offer erythromycin for 5 days plus self-care.