3 doctors weighed in:

What happens when an allergic person takes penicillin?

3 doctors weighed in
Dr. Sean McGhee
Internal Medicine - Allergy & Immunology
1 doctor agrees

In brief: Varies

Some reactions are mild, such as hives alone.
Others are more serious, with breathing problems and blood pressure drop. Some reactions (like some kinds of rashes) are not actually allergies, but different reactions that may or may not recur when you take the medicine. While it may be easier to just avoid penicillin, if it's important, you can find out if you have a "true" allergy by testing.

In brief: Varies

Some reactions are mild, such as hives alone.
Others are more serious, with breathing problems and blood pressure drop. Some reactions (like some kinds of rashes) are not actually allergies, but different reactions that may or may not recur when you take the medicine. While it may be easier to just avoid penicillin, if it's important, you can find out if you have a "true" allergy by testing.
Dr. Sean McGhee
Dr. Sean McGhee
Thank
Dr. Jack Mutnick
Internal Medicine - Allergy & Immunology

In brief: PCN Allergy

Maybe nothing, maybe a rash, GI upset, itching or maybe a serious allergic reaction called anaphylaxis.
You must discuss with your allergist to determine the level of allergy and if you are truly allergic.

In brief: PCN Allergy

Maybe nothing, maybe a rash, GI upset, itching or maybe a serious allergic reaction called anaphylaxis.
You must discuss with your allergist to determine the level of allergy and if you are truly allergic.
Dr. Jack Mutnick
Dr. Jack Mutnick
Thank
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