What Is It?
Erythromycin is a topical antibiotic that helps slow or stop bacterial growth and reduce skin inflammation.
Strength of Evidence
Average 53% reduction in acne after 8 weeks
- Gammon, W. R. et al. Comparative efficacy of oral erythromycin versus oral tetracycline in the treatment of acne vulgaris. A double-blind study. J Am Acad Dermatol 14, 183–186 (1986).
Low side effects and adverse reactions
Acne.org's Real World Take
Antibiotics should be used for a maximum of 3 months, provide only moderate benefit and only to some people, and may lead to side effects and strains of resistant bacteria. Studies do show they can reduce severe acne in the short term, but approach with caution and stay your own advocate.