Zovirax Cold Sore Cream Pump 2g is used to treat cold sores. The active ingredient, aciclovir is an antiviral agent. This cream contains 50 milligrams of aciclovir per gram.
Start using the cream when you get the first signs of infection. You may see skin blisters or be able to recognise the tingle sensation that means a blister will soon appear. Apply liberally to the area every 4 hours during your day (5 times per day. Always wash your hands before and after use.