A member asked:

Had impetigo and used mupirocin2% three weeks ago. left with redness and lower lip is itchy but no signs of blisters. is it back?

A doctor has provided 1 answer

Maybe not: If the redness is a little less (improving) each day, it may be "post-inflammatory" redness that gradually goes away after the impetigo heals. If crusting or oozing returns, then the doctor can look to see if the infection has returned. Many people get blisters on a lip that are cold sores, instead of impetigo. Cold sores are caused by viruses (mupirocin doesn't work on those viruses).

Answered 8/13/2017

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