Cold sore

Cold sores are contagious and can be passed on through direct contact or from items that have touched the cold sore. This is why it is important to avoid kissing anyone, touching your cold sore, or sharing any glasses, cutlery, or anything else that will have come into contact with the cold sore. It’s important to be especially careful around babies or anyone with a compromised immune system, as it can become a serious condition in this group of people.

Cold sores are usually self-limiting and usually heal without treatment within a week. It's very important to avoid touching the cold sore unless dabbing on a cream or gel purchased from your pharmacist and wash your hands thoroughly after touching the area.

If you have suffered from a cold sore before, it's important to stop a new one in its tracks, so ensure you have an antiviral cream in the bathroom cabinet. The moment you notice a cold sore or if you have a tingling or burning sensation, start using the cream.

Antiviral creams effectively reduce the overall size and spread of the blister and can reduce the healing time of the blister. If applied early on, an antiviral cream such as docosanol (Abreva), which can be bought from any pharmacy, helps prevent the cold sore from developing or worsening. Starting an antiviral cream once the blister has already erupted is unlikely to improve the outcome. Still, it's worth simply moisturizing the lips and providing a barrier over the skin to aid healing.

Use as recommended in the instructions, and make sure you wash your hands thoroughly before and after applying the cream. Dab the cream on instead of rubbing it in.

If you feel self-conscious or you have a particular event or meeting, something like the Compeed cold sore patch can be used as a cosmetic cover. It can also provide a protective moisturizing barrier and reduce the drying and cracking of the cold sore.

You can also use a pain-relieving or soothing gel recommended by your pharmacist or pain-relief medications such as acetaminophen and ibuprofen.

If you have a lowered immune system, either due to a medical condition or medical treatment, book an appointment with your doctor as soon as you notice a cold sore.

Similarly, book an appointment to see your doctor if the cold sore is large or extremely painful, if there are multiple sores clustered together, if you have sores in your mouth or painful gums, or if the cold sore has not healed after 10 days.

The doctor will ask you about your medical history, examine the area, and may prescribe oral or topical antivirals. If you are pregnant or have a lowered immune system, the doctor may refer you to a specialist.

You are fit for work if you have a cold sore.