Jock Itch near genital area. And stinky.

I had some round rings formed back in September 2018. I didn't pay any attention because I was just a random 13 y/o boy and left it. It was itching and itching and now , 2 years later I still have the infection near my thighs' genital area. The problem is that now the sides have darkened(black) and wounds have been formed. They are not able to get recovered because of the itching cause during when I sleep. And when I'm half sleep and half awoke I get that itching and I scratch the wounds out... And it again tries to recover and the same process goes on and on as I scratch it. Didn't told any family member or consulted locally because I'm an introvert. Thought to get a consultant via Practo. Hope I'll get any suggestions and practices to get this thing sorted out. Really feels uncomfortable and stinky...