Understanding the truth behind penicillin allergy is crucial—not just for your personal care, but for public health and antibiotic stewardship.

Patients with penicillin allergy labels experienced worse outcomes with bacterial pneumonia than patients who did not have these labels, according to a study published in The Journal of Allergy ...

More information: Angelina Lim et al, Implementation of a proposed algorithm to assess and de-label false penicillin allergy labels in the community, Infection, Disease & Health (2025). DOI: 10. ...

People with a history of allergic reactions to penicillin don’t commonly have reactions when they are exposed to low doses of the drug, according to a review of research published Monday in JAMA ...

“Penicillin allergy labels are associated with increased health care cost burdens as well as adverse events for patients,” said Althea Marie Diaz, MD, primary author of the study.

What Can You Do If You Have a Penicillin Allergy Label? Talk to your doctor. If you were labeled allergic as a child or many years ago, it’s worth revisiting.