Zovirax Cream Tube – 2g If you’ve got something important coming up, make sure you’ve got some Zovirax antiviral cream handy. Because if you get that tingling feeling, the sooner you act, the better your chances of preventing a cold sore from ruining your plans. Applied at the tingle, Zovirax cream can help prevent the development of a cold sore. It contains aciclovir, an antiviral that fights the cold sore virus. And only Zovirax cream has the unique MAC-P? formula which makes it penetrate a cold sore 5 x faster* to quickly reach the site of infection. In fact, Zovirax cream can help cut healing time by half.** Zovirax cream is available in a tube from most major Pharmacies and Supermarkets nationally.