Valtrex for just ONE DAY in patients with cold sores
October 2002
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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