Can Penicillin Kill You if you already broke out of hives from it?

Yes, penicillin can potentially be life-threatening if you have a history of allergic reactions, such as hives. An allergic reaction can escalate to anaphylaxis, a severe and rapid response that can be fatal if not treated promptly. If you have previously experienced hives after taking penicillin, it is crucial to avoid the drug and consult a healthcare professional for alternatives. Always inform your doctor about any known Allergies to medications.