What is e-mycin most commonly used for? Is it an acne medication?

Erythromycin. Erythromycin comes in several forms. There are tablets and capsules which can be used to treat acne and other infections. Some staph and other infections are sensitive to erythromycin. Erthromycin also comes in a liquid topical form for acne. It is also combined with benzoyl peroxide for acne treatment. There are also ointment forms, some for acne, some for eye infections.