What Causes Cold Sores (Oral Herpes Lesions)

Cold sore is a type of oral ulcer, or an open sore inside the mouth caused by a break in the mucous membrane on the lips or surrounding the mouth. It is caused by the herpes simplex virus. Once formed, the sore may be maintained by inflammation and or secondary infection.

Symptoms – Cold sores appear as a white or yellow oval with an inflamed red border. In some cases, a white circle around the lesion can be seen.

Causes of cold sores – Oral ulcers have many causes. In the case of cold sores, it is cause by Herpes simplex virus. Thus causes recurrent soring preceded by usually painful, multiple vesicles. Also, cold sores are contagious and can be transmitted by contact with lips, whether or not the sores are visible.

Treatment – Recovering from cold sores are usually achieved by over-the-counter topical gels that may contain choline salicylate. It helps reduce the pain and inflammation associated with cold sores. In severe cases, doctors may prescribe antibiotics, steroids, and local anesthetics.