What Causes Sweating And Itching In Testicles?

Yeah my balls are always sweaty. And itch. And then my penis has dry patches of skin on shaft and on the head of penis. And sometimes when I pick the dry skin. Its sore and red. But not bleeding. And it itches and some times hurts but not reslly a hurt just more irritating then anything. Thanks hope to hear back from you. Thanks, jeff mielke