You didn't contract hsv from the protected oral sex. So this either has to be something else or hsv from a differant exposure (not likely).
I got it checked out online with a photo assessment and with my primary care physician in person and both of them said that it didn't look like herpes. It hasn't changed in size or appearance in 8 days so I'm not too sure. Still no symptoms other than the growth itself. I just got a blood test today and should hear from the results in 3 days. I have a dermatologist appointment in 2 1/2 weeks. I'll keep you updated. I just don't want herpes lol.
Don't want to scare you but I read in a book once that someone who had masturbated regularly had developed a kind of bump/lump due to the friction/constant motion and it had gone on to become a cancer. He had died from it. I think you should consult a doctor to be on the safe side.