Aciclovir 200mg Tablets are an antiviral medication used to treat cold sores caused by the herpes simplex virus. Cold sores are small, fluid-filled blisters that often appear around the lips and mouth. Aciclovir works by preventing the virus from multiplying, helping to reduce the severity and duration of symptoms. Although it does not cure herpes or stop future outbreaks, starting treatment as soon as symptoms appear can speed up healing and relieve discomfort.

These tablets are taken orally, usually several times a day, and are most effective when used at the first sign of a tingling or burning sensation.