Is an allergy to penicillin deadly?

A few years ago my doctor told me I was allergic to penicillin. He prescribed me some antibiotics and my hands and feet were covered in red dots so that's how he diagnosed me. I recently went to a different doctor and he prescribed antibiotics for my flu and it has penicillin in. Should I take it back or will... show more A few years ago my doctor told me I was allergic to penicillin. He prescribed me some antibiotics and my hands and feet were covered in red dots so that's how he diagnosed me. I recently went to a different doctor and he prescribed antibiotics for my flu and it has penicillin in. Should I take it back or will the symptoms of the allergy be less than deadly?
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