Lovir Eye Ointment is a topical medicine used for the treatment of herpes simplex keratitis, an eye infection caused due to herpex simplex virus and affects the cornea of the eye. The viral infection causes discomfort and can lead to vision loss if left untreated. The main ingredient of the medicine is acyclovir which works by inhibiting the growth of the virus and reduces symptoms including inflammation, eye pain and redness. It reduces the duration and severity of outbreaks and promotes healing. The medicine is applied directly to the affected area a few times a day or as prescribed by the doctor.