Read what you wrote again.. I dont understand it all.
Jock itch, athletes foot.. happens to us all, everyone i know in bjj has had it at one time or another. this stuff is coming from you not being a clean person, and also from your teamates. To help with this bring an extra pair of shorts, towl, and pair of flip flops to practice with you. When you get done.. take off the wet pants/shorts dry your self off(between the toes too) and put on clean dry ones, as well as flip flops so your feet stay dry. When you driving home put on the Foot/Head air conditioning in your car so your feet dont continue to sweat. If your having problems with it just go get some Tough actin Tinactin and it will clear it up. Your enemy is wetness. I noticed i was getting jock itch because i would walk out of practice with my gi pants on .. and get in my car and drive home which was an hour, then get out and go take a shower.
I havent had it for a long time now, and my solution in the morning classes is a beach bum shower. After practice i put on board shorts, fill up a gallon of water in the sink, and pour it over my entire self.. like a shower w/out soap. Then i dry off.. put on clean clothes and go to work. If we had showers, i would just take one, but since we dont.. i have to improvise.
Another method is rubbing down with Anti bacterial hand sanitizer.. but i still dont feel clean after that.
Wearing wrestling shoes to me is just funny. Nothing makes me smile more to see a guy in a bjj gi and a pair of wrestling shoes. But do what you like.. To me it is kind of rude when you have shoes on and you step on someone, or touch their face, or anything like that.. not that the feet are much better.. but atleast its not shoes. In wrestling its fine because you dotn have guys constantly going for armlocks or returning guard where the feet come near the face.