Zovirax cream contains the antiviral agent, acyclovir 5% also known as aciclovir, which is used to treat cold sores caused by the Herpes Simplex virus.
Symptoms of cold sores are watery blisters usually seen on the lips or around the nose. They are painful and are usually preceded by a tingling sensation which is a signal to begin applying Zovirax cream.
Zovirax cream shortens the duration and severity of the infection and may help prevent a cold sore forming. Zovirax cream may be used at any stage of the infection but the earlier the treatment can be begun the better the outcome. Zovirax comes in a tube or a pump pack for convenience.