Acyclovir and famciclovir are highly effective antiviral medications used to treat cold sores, shingles, and recurrent herpes by inhibiting viral replication. While acyclovir is a cost-effective, proven standard for mild outbreaks, famciclovir offers superior bioavailability and requires fewer daily doses. Choosing the best antiviral depends on the severity of the infection, treatment timing, and the… Continue reading Acyclovir vs. Famciclovir: Which Is Better for Cold Sores and Shingles?