Milwaukee – September 22, 2026 -- More than 90% of patients carrying a documented penicillin allergy in their electronic medical records can safely take the drug after clinical evaluation, according to the American Academy of Allergy, Asthma & Immunology (AAAAI), which is marking National Penicillin Allergy Day on September 28 with a push for wider adoption of allergy "de-labeling" protocols.