Ok well about 3 months ago i had unprotected sex with my ex-girlfreind, which was both of our first time every having sex. during the sex her vagina was very tight and i found it hard to insert my penis in.
this caused a sort of rash from the friction i think.
since then i have had a sort of rash on the shaft of my penis, with white crust surrounding it.
its not bumpy or itching or anything, but i can sorta peal some of the white crust off the rash...
it hasn't seem to be going away and i'm not really sure what to do about it
i'm also a little concenred it might be a sort of STI, but i don't see how thats possible
seeing how it was both our first time, and neither of us have any previous disease...
any thoughts on what it is or what i should do??