Herpes scabs usually do not need to apply acyclovir ointment, but you should follow the doctor’s instructions to stop the medication, not blindly stop the medication on your own. Herpes is a skin disease caused by herpes virus infection, mainly manifested as single or multiple blisters. If the herpes has crusted over, the use of acyclovir ointment is not easily absorbed, so you can usually stop using it. Acyclovir ointment can be used on the skin and mucous membranes, can not be used in the eye area; in the application of the drug is recommended to wear sterile gloves or use sterile cotton swabs to prevent herpes trauma infection; pregnant women and lactating women should be cautious; allergic to the product is prohibited. If burning sensation, itching, redness and swelling occur during use, discontinue use. The use of acyclovir ointment may have adverse reactions, such as mild pain, burning, tingling, itching, and rash, so you should follow the doctor’s instructions to use the drug to avoid adverse reactions.