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A member asked:
If i'd have an allergy to a sulfa antibiotic would i know that from the first pill ? or can it happen even after a few days ?
A doctor has provided 1 answer
Depends: If you were exposed to sulpha before, an allergic reaction can be seen after the first pill, if not it might take few doses to appear, at any rate, if in doubt, take your first pill in the doctor's office and wait for an hour, or take the first pill in any hospital er waiting room and wait for an hour, in either place if an allergy reaction occurs, you're in the very place you want to be.
Answered 5/4/2014
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