Cold Sore Treatment

Cold sores are caused by the herpes simplex virus, most commonly HSV-1. Once infected, the virus remains in the body and can reactivate, causing recurring outbreaks around the lips or mouth.

Yes. A healthcare provider can evaluate your symptoms through a virtual visit and prescribe antiviral medication when appropriate. Starting treatment early often provides the greatest benefit.

Most cold sore outbreaks last between 7 and 14 days. Antiviral medications may help shorten the duration of symptoms and speed healing when started early.

Yes. Cold sores are highly contagious and can spread through close personal contact such as kissing or sharing items that come into contact with the mouth. The risk of transmission is highest when sores are present.

While cold sores cannot always be prevented, avoiding known triggers such as stress, illness, and excessive sun exposure may help reduce outbreaks. For people with frequent recurrences, antiviral medication may also help prevent future episodes.