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Penicillin is a substance produced by penicillium mold. About 80% of people with a penicillin allergy will lose the allergy after about 10 years. Imagine this: You’re at your doctor’s office with a sore throat. The nurse asks, “Any allergies?” And without hesitation you reply, ” Penicillin .” It’s something you’ve said for years — maybe since childhood, maybe because a parent told you so. The nurse nods, makes a note and moves on.
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