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What Is A Cold Sore From. About 80 of the people in North America have dormant inactive herpes 1 virus living permanently in their body. Cold cores or fever blisters are caused by a form of the herpes simplex virus HSV-1 or HSV-2. But now researchers at. Most people are exposed to the virus when theyre young after close skin to skin contact such as kissing with someone who has a cold sore.
Once you have the virus it stays in your skin for the rest of your life. There are no cures. This virus is very common and highly contagious. A cold sore is a group of small painful blisters or ulcers on your face that are caused by the herpes simplex virus HSV. It is more likely to spread if there is a visible sore particularly if it is in the blistering and crusting stage but can be spread even with normal-appearing skin says Jeffy. In others HSV-1 causes the occasional outbreak of cold sores.
But now researchers at.
Shared eating utensils razors and towels might also spread HSV-1. It spreads through saliva or close contact often through kissing or by sharing utensils straws towels or lip balm with someone who has a cold sore. The virus that most commonly causes cold sores is herpes simplex 1. Shared eating utensils razors and towels might also spread HSV-1. A cold sore is a group of tiny painful blisters caused by the herpes simplex virus HSV. An outbreak of cold sores may happen some time later.