Cold sores, also known as fever blisters, are common, contagious outbreaks caused by the herpes simplex virus type 1, with ...
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How to spot herpes symptoms

Medically reviewed by Soma Mandal, MD Key Takeaways Cold sores from HSV-1 can cause blisters and pain around the ...
Cold sores have a maddening sense of timing. They often show up just when you would least like a sore, visible reminder that ...