How do I know if my cold sores are from oral sex?

Thats a great question! Cold sores are caused by the Herpes Simplex Virus (HSV). It is most commonly found at the mouth or the genital region. HSV is passed from skin to skin contact from a person who has the virus. It is often very difficult to tell where someone got HSV. Most commonly it is from mouth to mouth or mouth to genitals or genitals to genitals. Come on in to the clinic to get more info!! Check out this link. http://www.stdresource.com/disease/index.php?page=edit&id=11&action=view...