Pubic skin rashes. Or liquid or cream?

In the bottom right of scrotum, there is a red batch formed which is very sensitive to touch and very painful as well There is always something liquid kind of thing coming out from it When I wear undergarments then because of that liquid, cloth get stick with that red area on skin and when I try to remove it then it pains a lot And if I don't wear anything then it gets in touch with thies which is also very painful and makes walking impossible Even when I use Abzorb antifungal power on it then only in few minutes that liquid completely wet that powder and make clothe stick to skin again I also have Caladryl antifungal liquid which cause very high burning sensation and pain after applying So I want to ask how can I fix this rashes and what antifungal medicine should I use, power or liquid or cream ? Which one would be better in my case Thank you sir