around 8 days ago I do have a genital rubbing with a CSW. I did used a condom, but yesterday i have felt a swollen in my gums. Its small round white pimple like and not a open sore. it hurts when i touch it but doesn't bleed. Is this somewhat sti? like Herpes, HPV, Syphilis or just a canker sore? I have read that some sti doesnt require penetration to transmit