I need some help. yeast or bladder?

I (a male) had the same problem. I'd get raw and bleeding between my and legs with white patches of skin that would liquefy. I was told it was a fungus, and they told me to keep it dry. The powder said it could cause cancer right on the package so I thew it away. Then I noticed my shorts were always wet from sweat, so I stopped wearing underwear, and it cleared up.. Sometimes I go for good air circulation. Hope this is of some help. Happy new year.