Dear Doctor K: I get painful cold sores in my mouth every couple of weeks. Why do I get them? And what can I do to make them go away faster? Dear Reader: Cold sores are caused by the herpes simplex ...

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They're called cold sores or fever blisters, but can pop up without the cold or the fever. Unfortunately for those prone to these unsightly blisters, stress, sun exposure or even a visit to the ...

Cold sores are an unhappy fact of life for an estimated 55 million Americans, say health experts. ``Some of my patients know they will get a cold sore whenever they go skiing or to the beach,'' says ...