I have been searching for the answer to this question and I have not found it anywhere on any website. If I myself have a cold sore on my lip, and the guy I am seeing makes out with me, and then he gives me oral sex, can my oral herpes infection spread to my genitals? I know that if he had a cold sore and gave me oral sex there is a chance of contracting genital herpes, but I have never seen this question answered. Any help is greatly appreciated.