It usually works within 5-7 days of application and the exact effect of the medication varies from person to person. The main ingredient of Acyclovir Cream is Acyclovir, which belongs to the antiviral ointment and can be used for the treatment of herpes simplex or herpes zoster infection. This drug is a local topical drug, patients can take the appropriate amount of this product on the affected area, adults and children are every 2 hours during the day, 4-6 times a day, usually in the use of 5-7 days to take effect, but due to each person’s physique, condition and so on, the specific effect of the drug varies from person to person. A small number of patients may experience mild pain, burning, tingling, itching and rash and other adverse reactions after use, acyclovir cream is only used for the skin mucous membranes, can not be used for the eyes, for pregnant women, lactating women, allergies and other groups of people should be used with caution, acyclovir allergic patients should be prohibited from using this drug. It is recommended that patients pay attention to the protection of local skin during treatment to avoid the combination of bacterial infections, such as burning sensation, itching, redness, swelling and other conditions, should consult a doctor in a timely manner.