Erythromycin ointment can reduce swelling. Erythromycin ointment is an antibiotic drug. This product has a good effect on promoting wound healing and preventing infection. Erythromycin ointment can improve purulent skin diseases such as impetigo, and can be used to relieve ulcer surface infection or small area burn. Erythromycin is the main component of erythromycin ointment. After using erythromycin ointment, there may be adverse performance, such as irritation and allergy. Avoid contact with eyes and mucous membranes, such as mouth and nose.