Itching and redness between scrotum and legs

Hi, Im 16 years old now, and havnt have any sex in over a year (used to have a girlfriend I allways had sex with, but we broke up) Iv have the redness and ichyness for a while now, probly 6 or 7 months. Iv tryed different things and havnt had any luck with geting rid of it. My current girl friend is scared to do anything, and I dont blam her, and Iv talked to my ex and she said she doesnt have anything (no ichying and redness).

Any help would be great, Thanks