If You Have Penicillin Allergies, You Should Get Retested

Patients who have been diagnosed with penicillin allergies probably aren’t allergic to it anymore, according to a new finding. The allergy wears off over time, but most people live the rest of their lives believing they're still allergic, and pay for more expensive, unnecessary medication. Mayo Clinic Allergist Dr. Thanai Pongdee, and his team retested 384…