The warning signs

The first symptom of a developing cold sore is often a tingly or burning feeling where it is about to appear.

It's also common to be quite itchy around this area as well. This itchy, tingling feeling tends to last from a few hours up to 1 day.

Look closely at the tingling area - you're looking for slight redness and maybe a slightly raised area.

The skin over the cold sore area continues to become a little puffy, as a blister forms. Once the blister comes to the surface and dries to form a scab, the skin continues to heal and return to normal.

Just a tingle

The earlier you treat a cold sore, the better.

The best time to start treatment is when that tingling sensation first happens, before any visible sign of a cold sore appears. If you miss it, don’t worry, it's not too late to treat!

The cold sore will then start to appear as a blister. At this stage, treatment is essential. You can use Zovirax Antiviral Cream as a first step to help treat and heal your cold sore, and in situations where you want to prevent your cold sore spreading – or stop it from being seen – we recommend you use Zovirax invisiSeal Patches.

Be aware that many cold sore treatments available from your local pharmacy or supermarket, only act as mild antiseptics and skin moisturisers. Zovirax Cream is different. It contains a special antiviral ingredient (aciclovir) that works to fight the cold sore virus.

Zovirax is also the only cold sore cream that contains MAC-P, an absorption accelerant that penetrates the skin up to 5 x faster* allowing the active ingredient (aciclovir) to reach the sight of the infection FAST.

* 24hr aciclovir penetration compared to other aciclovir creams