Are Cold Sores a Form of Herpes?

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Yes, cold sores are a form of herpes. Cold sores – often referred to as “fever blisters” – are caused by the herpes simplex virus (HSV)1. These painful blisters are usually caused by HSV type 1, or HSV-11. However, cold sores can also be caused by HSV type 2, or HSV-2...