My partner gave me oral sex a few days ago. I noticed the following day that he had a scab from a cold sore. Can a scab be infectious? It fell off 2 days after the act. how likely is it that i will get HSV-1 genital herpes? i have never had cold sores before, so I am not sure I have the HSV-1 positive. I am negative for HSV-2. Thanks!