Zovirax is a topical treatment for cold sores. Cold sores are fairly common and are caused by the virus herpes labialis, most people get the virus as a young child.
Usually, the only way you would know that you have the virus is because you suffer from cold sores, these are painful blisters which form around your mouth. Cold sores can occur at any time but usually appear if you are stressed or run down.
Once you have the virus you can not cure it, but with Zovirax you can treat it and if you use Zovirax at the first signs of a cold sore, you could prevent it.
Zovirax contains the active ingredient Aciclovir. Aciclovir is an antiviral medicine which is commonly used for viral skin infections such as cold sores and genital herpes. It works by blocking the reproduction of the virus, preventing the blister from forming or preventing the blister from getting any worse. Zovirax also includes moisturisers which help to soften the skin and improve the appearance of a cold sore.