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You are seeing a 13 month old with a rash for 3 days. It started as fluid-filled vesicles that grew, burst, and released clear-yellow non-purulent fluid. It seems mildly itchy to the parent. The child has had a low-grade fever to 38.2 for one day and appears otherwise well. There is no past medical history and no ill contacts; immunizations are up to date.

Bullous Impetigo

Open access, Pereira LB  Anais brasileiros de dermatologia (2014 Mar-Apr)

Which is the most appropriate treatment?