People who are allergic to penicillin might want to get tested again.

Penicillin is used to treat certain infections. Research shows that a majority of people who were told at some point they are allergic to the medicine are actually not.

About 10% of general population has a penicillin allergy in their electronic medical record. However, 90 to 95% of these patients that have a listed allergy can actually tolerate penicillin.

People who are allergic to penicillin have to be given alternative antibiotics, which have more adverse effects.