Acyclovir ointment is mainly used for the topical treatment of herpes zoster, herpes simplex and genital herpes and other skin diseases, and the effect is still good. When using acyclovir ointment topically, it should be combined with some oral antiviral drugs for combined treatment, so that the effect is still good. Acyclovir ointment should be applied topically to the affected area, generally once every 2 hours, 6-7 times a day, 7 days as a course of treatment. If mild pain, burning or stinging sensation occurs during topical application, it may be an allergic reaction and needs to be discontinued. Take care when using it, do not use it on the eyes. Allergy to this product should be prohibited, and it should be used with caution during lactation or in children. Therefore, specific application and treatment should be carried out under the guidance of a clinician to avoid causing aggravation of the condition.