Zovirax Cream Tube 2GmZovirax Cold Sore Cream offers you fast, effective treatment of cold sores (herpes simplex virus) Zovirax Cold Sore Cream can also speed up the healing process for cold sores that have already appeared, use Zovirax at the first sign of a cold sore when you get that you get a blister of that cold sore tingle. Zovirax cream contains the active ingredient aciclovir, which is an antiviral medicine used to treat infections with the herpes virus