Denavir is a topical antiviral medication used for recurrent cold sores (herpes labialis) on the lips and face in otherwise healthy adult patients. It is applied externally on the lips and face. It is not indicated for internal use on mucous membranes inside the mouth, nose, genital or rectal areas.
Denavir has been shown to heal cold sores on average in four and a half days. It has also been shown to reduce the lesion pain by about one-half-day when compared to placebo. However, always consult with your physician or dentist for information on your particular situation.