Cold sores, or oral herpes, are blisters that form on or near the lips, nose, or mouth. In some cases, cold sores can form on the tongue. HSV-1 can transmit between people through mouth-to-mouth ...
Cold sores are caused by the herpes simplex virus, usually herpes simplex virus type 1 (HSV-1). There is little to no evidence that specific foods trigger outbreaks. Common cold sore triggers include ...
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