what is acyclovir ointment used for

Acyclovir ointment is used to treat the symptoms of herpes simplex virus infections of the skin, mucous membranes, and genitals (sex organs). It is specifically used to treat "cold sores/fever blisters" (herpes labialis) on the face or lips, and first outbreaks of genital herpes. It can speed up healing of the sores and decrease symptoms such as tingling, pain, burning, and itching. Acyclovir belongs to a class of medications known as antivirals, and it works by stopping the growth of the virus. However, it does not cure herpes, prevent passing the infection to someone else, or prevent a future occurrence