I had unprotected oral sex(giving/receiving) with this guy. I have been doing this with him for about a month, so the first time I did it with him was about a month ago.
I was feeling the sting when I masturbated yesterday, and today I found a sore on the exact spot where it stung. It doesn't sore any more, but you could clearly see something is there now. It's round shaped, red, shiny(hasn't scabbed yet), and flat.
Is there any chance that I have syphilis? Could I stop worrying once it scabs(it hasn't yet). How long syphilis chancres usually last?
Google a syphilis sore to take a look and compare it to what you have. You will see that it is probably different.