Guest posting:  Jason Trubiano, Antimicrobial Stewardship, Drug and Antibiotic Allergy Service and Centre for Antibiotic Allergy and Research, Austin Health, Victoria, Australia.  Penicillin allergies are not always lifelong. Approximately 50% are lost over five years. A reaction to penicillin during a childhood infection is unlikely to be a true allergy. Only 1–2% of patients with […]