Cold sores are small blister-like sores, which develop in the corners of the mouth. They may be painful and usually cause symptoms, although many people experience tingling or burning sensation just before a cold sore develops.

How do cold sores develop?

Cold sores are commonly caused by the herpes simplex virus (HSV) and in most cases they are caused by a strain of the virus known as HSV-1. However, they can also be caused by a strain known as HSV-2. In this case, cold sores usually result from participating in oral sex with somebody who has genital herpes, which is also caused by the herpes simplex virus.

The herpes simplex virus is highly contagious as it can pass from person to person very quickly and easily. After you have contracted the herpes simplex virus, the virus lies dormant within the body. However, this does not mean that you have cold sores all the time, as the virus tends to lie dormant for long periods of time.

Here are 5 reasons why you may be suffering from cold sores on a regular basis:

1. Medical reasons

The herpes simplex virus remains in the body, which means that you can get cold sores on a regular basis. The virus tends to lie dormant, but many find that they have flare-ups in response to certain triggers. You can never get rid of the virus, but most people find that they get cold sores rarely.

2. Tiredness

If you are tired or run-down, you may find that you get cold sores because your immune system is not as effective as usual. Try to ensure you get plenty of sleep and avoid stressful situations. If you do find that you are tired a lot of the time and having trouble sleeping, see your GP.

3. Stress

Stress is a well-known trigger for cold sores, as well as many other potential health problems. There are many possible sources of stress, from financial pressure and deadlines at work, to relationship worries and illness. If you do suffer from stress and having trouble coping, it is a good idea to see your GP and to use some stress management techniques, such as exercise, breathing exercises and massage.

4. Changes in the temperature

Exposure to hot and cold weather can trigger cold sores. Many find that they suffer from sores when they go on holiday and spend a lot of time in the sun. If you are going abroad or planning to spend a lot of time out in the sun in the garden, always remember to wear sun cream.

5. Monthly periods

Women who get cold sores often find that they have flare-ups in sync with their menstrual cycle.

Treatment for cold sores

There is no cure for the herpes simple virus, but you can purchase over-the-counter cold sore treatments, which contain antiviral medication. In most cases, cold sores heal without any need for treatment and usually disappear within 7-10 days.

If you have a this condition, avoid touching it and wash your hands on a regular basis. Remember to try and avoid sharing cutlery and drinks with other people to prevent the virus from spreading.