Help please. Could genital herpes cause herpes on the mouth?

Herpes Transmission. Herpes simplex virus (hsv) has two types: type I generally infects the mouth and produces "fever blisters". Type ii more commonly is genital. However, performing oral sex on someone infected with hsv I or ii can result in oral herpes. There are blood tests that can quickly determine if you've been infected with either strain. Antivirals help to reduce shedding and infection.