Valtrex for just ONE DAY in patients with cold sores

You can now give Valtrex for just ONE DAY in patients with cold sores.

It works about as well as 4 to 5 days of oral acyclovir...or topical Abreva (docosanol)...or Denavir (penciclovir).

They all reduce the duration of cold sores by about a day.

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