well I just replied to this same question to somebody else one minute ago, but what you are describing sounds certainly like a fungal infection, unfortunately labelled "crotch rot". Make sure to keep the area dry with talcum powders for about 6 weeks, also get some lamisil or ketoconazole from a pharmacy and use it daily for 6 weeks after cleaning and drying the area. At a Dr. you can get the creams twice as strong, so better to go there. Yes, also, it would be unbearably itchy sometimes with crotch rot. It happens more than you would think, so dont feel bad about it. Remember it is very important to keep the area dry as often as you possibly can even if it means keeping paper towels with you and going to the pisser every 10 minutes to wipe the sweat off the groin if it's a very hot day!