Okay so I had sex with this girl; I was stupid and did not wear a condom sadly... she has been tested and came out clean i her test but tonight I noticed a redness on the tip of my penis and the foreskin.. we did a hell of a lot of grinding and I am wondering is this just from the friction or could it be something else.I also tried a new soap and I heard that could cause something like this I need answers fast... thanks..