Understanding and Treating Cold Sores: Expert Insights
Originally Published 2 years ago — by USA TODAY
Cold sores, caused by the herpes simplex virus, can be treated with over-the-counter medication, oral antiviral medication like valacyclovir, or intravenous antiviral medicine. Valacyclovir works by suppressing viral replication, making it harder for the virus to manifest into a cold sore. It can be taken when exposed to triggers or at the onset of prodromal symptoms. Leaving a cold sore untreated usually lasts about two weeks, but taking valacyclovir can shorten the duration by a few days. Cold sores are common and nothing to be ashamed of, and treatment can help regain confidence.