Zovirax cold sore cream contains aciclovir, an antiviral medicine that helps stop the herpes simplex virus from multiplying. Using it early can shorten healing time and reduce symptoms such as tingling, burning or swelling.

Zovirax cream begins working soon after application, although symptoms may take a day or two to noticeably improve. Starting treatment at the first sign of tingling often leads to the best results.

Apply a thin layer of Zovirax cream to the affected area five times a day, leaving about four hours between applications. Wash your hands before and after use, and avoid touching or picking at the sore.

Yes. Using Zovirax cream at the first sign of tingling, itching or burning can sometimes prevent the cold sore from progressing into a blister. Early treatment helps limit viral activity and may reduce the severity of the episode.

Yes. Zovirax cream can help reduce symptoms and speed healing in people who experience frequent outbreaks. While it cannot stop outbreaks entirely, using it early each time can make episodes shorter and less uncomfortable.

People with known allergies to aciclovir or similar medicines should avoid Zovirax cream. If you have a weakened immune system, speak to a clinician first, as you may need alternative treatment.

Most people tolerate Zovirax cream well. Mild stinging, dry skin or redness can occur at the application site and usually settles quickly. Stop using the cream and seek advice if irritation becomes persistent.

Yes, but only once the cream has fully absorbed. Applying lip products too soon can reduce the cream’s effectiveness or cause it to rub off. Consider using a cold sore–friendly concealer if you need extra coverage.

Yes. Some people use both treatments when outbreaks are frequent or severe. The cream works locally while tablets act internally to reduce viral activity. A clinician can advise whether dual treatment is appropriate.

It can still help. Zovirax cream may reduce discomfort and support faster healing even at the blister stage, although results are usually better when applied early. Continue using the cream as directed until the outbreak settles.

Zovirax cream is often considered safe because only a small amount is absorbed into the body. However, you should still check with a clinician before use during pregnancy or breastfeeding to ensure it is the best option.

Use Zovirax cream five times daily, spaced evenly across the day. Keeping to this routine helps maintain antiviral activity and supports faster healing. Continue treatment for up to five days or as advised by a clinician.

Yes. Zovirax cream can help ease early tingling and irritation by slowing viral activity and soothing the affected area. Using it during the first signs of a flare gives the best chance of reducing discomfort.

If symptoms do not improve, worsen or last longer than ten days, speak to a clinician. You may benefit from antiviral tablets or alternative treatments based on how often and how severely your cold sores occur.

It may help slightly by limiting viral activity and reducing the chance of touching the sore accidentally, but it cannot prevent transmission entirely. Avoid sharing lip products and wash hands after application.