Originally Posted by JayKay335i
It would be pretty rare to happen. I mean, you would REALLY have to try and infect your genitals with virions from cold sore lesions - like a chick with a cold sore giving you head.
HSV-1 is the virus that gives rise to cold sores so maybe it would be less effective in giving rise to the genital herpes which are normally caused by HSV-2. This is assuming you have antibodies to the cold sore virus which most people do.
I'm not a virologist so take that with a grain of salt.