Fenistil Cold Sore Cream is proven to be effective when applied as early as possible at the first sign of a cold sore developing.

Fenistil Cold Sore Cream is for the treatment of cold sores (herpes labialis) containing the active ingredient Penciclovir 1%. Penciclovir is an antiviral medicine which stops the cold sore virus multiplying.

Applying Fenistil Cold Sore Cream means your cold sore heals faster and the duration of the pain will be shorter. The time that your cold sore is infectious will also be shorter, although applying Fenistil Cold Sore Cream will not stop you spreading your cold sores to another person.