Herpes simplex is a viral infection that typically affects the mouth, genitals, or anal area. It is contagious and can cause outbreaks of sores and other symptoms. Herpes simplex virus (HSV) is a ...

Herpes is a common infection caused by herpes simplex viruses. It can cause painful blisters that come and go, usually around the mouth and genitals. Many people who are infected don’t know it. It’s ...