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A member asked:

How long does a penicillin allergy rash take to clear?

A doctor has provided 1 answer

Up to 30 days: Drug allergies can resolve in a few days and may persist for several weeks until the residual penicillin by products are cleared from body.

Dr Brown and 2 doctors agreed

Answered 6/20/2021

5.9k views

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People also searched for:

How long does it take a rash due to a penicillin allergy to clear?
Was able to take penicillin as a kid for tonsillitis. Had one reaction of a rash when i was 10. Is this an allergy?
I stopped taking penicillin 6 days ago and ever since the last day I took it I have whole body itching with no rash. Is this an allergy and how long can it take to go away? I was only in a 3 day course.
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