Zovirax

Choosing a cold sore treatment

Zovirax contains aciclovir, an antiviral that's most effective applied at the first tingle. The same active ingredient is available as cheaper generics (such as Acic), and there are also cold sore patches that cover the sore and can be worn under make-up. Zovirax itself comes as a tube and a pump — the pump can be more hygienic and precise.

Frequently Asked Questions

Is Zovirax different from generic aciclovir?

Both contain aciclovir 5%. Generics offer the same active ingredient at a lower price; Zovirax is the original brand.

Cream or patch — which is better?

Antiviral creams like Zovirax target the virus and work best applied early; patches protect and conceal the sore and reduce spread. Some people use a cream early, then a patch.

When should I see a doctor?

See your GP if cold sores are severe, frequent, last over 10 days, spread near the eyes, or if you have a weakened immune system.