Welcome to the forum Joe. thanks for your questions but i need to ask few questions before coming to some conclusion.
How often do you sweat?
Any physical activities that causes excess sweat?
Do you have any bumps on genital areas that itch?
When does it itch most? during day or night or both or any other activities?
Do you have such rash on wrists and finger web-spaces?
Your profession? what you do currently?
Please do answer those questions, we'll be back with suggestions..