Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 10/10/2025

Antibiotic Treatment for Ear Infection in Breastfeeding Women with Penicillin Allergy

Patient Assessment and Antibiotic Selection

  • Severe allergy indicators include history of anaphylaxis, angioedema, respiratory distress, or urticaria following penicillin or cephalosporin exposure, as recommended by the Centers for Disease Control and Prevention (CDC) 1, 2
  • The CDC recommends that most patients reporting penicillin allergy are not truly allergic and may safely receive certain cephalosporins, but this requires careful history-taking 2

Breastfeeding Safety Considerations

  • The American Academy of Pediatrics (AAP) considers macrolides, such as azithromycin and clarithromycin, compatible with breastfeeding at recommended dosages, with less than 2% of maternal weight-adjusted dose transferring to breast milk 1, 2