How Long Does It Take for Erythromycin Ointment to Work

Tell your doctor or health care professional if your symptoms do not improve in 2 to 3 days.

How fast does erythromycin work?

Take erythromycin 2 or 4 times a day as prescribed by your doctor. For most infections, you should feel better within a few days. For skin conditions like acne and rosacea, it may take a couple of months before you see an improvement.

What does erythromycin ointment do?

Ophthalmic erythromycin is used to treat bacterial infections of the eye. This medication is also used to prevent bacterial infections of the eye in newborn babies. Erythromycin is in a class of medications called macrolide antibiotics. It works by killing bacteria that cause infections.