YOUNGSTOWN, Ohio (WKBN) – Ten percent of people say they have a penicillin allergy, and they may be wrong.

The American College of Allergy, Asthma and Immunology says you may be avoiding penicillin needlessly.

In fact, most people who believe they are allergic are not. Immunologists say it is worth getting tested to find out if you really are allergic because you can grow out of a penicillin allergy.

“It’s important not to do this on your own and not to assume that because 90 percent are not or no longer allergic to penicillin that I can take it safely. You’ve got to see a board certified allergist who is skilled and trained in doing this kind of testing to determine whether you can take penicillin safely,” said Dr. David Lang, an immunologist with the Cleveland Clinic.

People who are allergic to penicillin may experience symptoms that can include itching, hives and trouble breathing.