What are cold sores?

Cold sores are a very common illness caused by the Herpes Simplex virus (HSV).

Cold sores usually occur on or around the lip, or nose. Unless there is a secondary infection, cold sores usually clear up within 10 days, and do not leave a scar. The virus remains in the body and cold sores may recur if the person is stressed, tired, feverish or injured. Exposure to sun or wind can also trigger the cold sores. Cold sores are contagious, especially by direct contact, eg. Kissing. Cold sores are usually preceded by a feeling of tingling, burning, itching, or numbness in the spot where the cold sore is developing. As the cold sore becomes visible, small red spots and fluid blisters appear. There usually merge together into what looks like one sore.

The primary infection can progress in different ways. Some people only have very mild symptoms or none at all. The first outbreak starts one to three weeks after the virus has been contracted. It subsides spontaneously within a few weeks. Later, if HSV is reactivated, the blisters will return

The first symptom of an outbreak is an unpleasant tingling feeling in the skin. After a short while, a number of fluid-filled blisters appear

The sores become covered by scabs which typically fall off after eight to ten days. The virus can spread until the sores are completely covered by scabs.

Around 20 per cent of the people with HSV antibodies have recurrent attacks of cold sores throughout their lives.

In children, the virus can infect the mouth and throat (gingivostomatitis herpetica acuta). The infection may be accompanied by a fever and general aches and pains.

*Avoid passing it on through kissing and using others peoples towels, face    flannels, etc.

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