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Question and Answers
What are the causes of cold sores and how can they be prevented and treated?
Dr. Tom Says:
Cold sores are caused by a virus - herpes simplex type one. Many people get this from another family member or a close friend. Once a person has it, it can never be "cured" - but an episode may be shortened by using medicine in an ointment or in pills. Prevention seems to be a matter of good luck, plus never kissing a person with a cold sore.