Herpes simplex virus type 2 causes most cases of genital herpes.
Cold sores are usually caused by the herpes simplex virus type 1 (HSV-1).
There are 2 types of herpes simplex virus. The virus can spread between people by direct physical contact, such as kissing, skin-to-skin contact and sharing drink containers, eating utensils, towels or toothbrushes with someone who already has a cold sore.Īs well as a blister-like spot, the following symptoms are also common:ĬHECK YOUR SYMPTOMS - Use the Symptom Checker and find out if you need to seek medical help. They can be highly contagious, even when the blisters aren’t present. Example of a cold sore around the outside of the mouth.Ĭold sores usually clear up after 2 weeks without leaving any scars.
