The time frame for the development of an allergic reaction to any substance is highly variable and can be within days,weeks,months or years of taking the substance. I have seen allergic reactions the first day a person has taken a new medication presumably from a cross reaction to another medication taken in the past.Last one was after taking the first dose of the antiCovid medication, Paxlovid
Answered 4/27/2023
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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