i cannot estimate the likelihood of herpes transmission since there are just too many variables. some people shed herpes virus even when they do not have an obvious herpetic lesion. as a rule do not have oral sex with anyone when you have or recently-had a cold sore (herpes simplex). there is really nothing you can do about it after the act other than wait. and hope that you did not transmit this herpetic virus. if you did she will most certainly let you know.
i gave oral sex to my girlfriend 1 week after getting a cold sore. could she contract genital herpes? . i know that the chances are probably there. i guess i'm asking how likely is it to happen. she gets cold sores already. i treated the cold sore as soon as i saw the first sign. its just a small scab and mark now on my lip.