What cause fever blister? Fever blister is called is called cold sore; herpes oral; herpes labialis. It caused by infection of herpes simplex virus type 1. It is a contagious virus, that means the virus can spread to other people even to the part of our body. Symptoms of Fever blister start with itching, soreness and tingling in a day or two, after that appears small, red and painful blisters and usually located on the skin of the lips, mouth, and face.
The virus can spread by direct contact (kiss, oral sex, after touch the blister you touch your eye or genital), share items such towel, toothbrush, glass, and other...read more
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