I Sweat Excessive In The Scrotum Area When Sleeping And

I sweat excessive in the scrotum area when sleeping and wake up hot and slightly itching in this area. I put a pillar between my legs, but it does not seem to help. Doctor prescribe rash cream, but I do not have a rash. I also use baby powder for drying the area, but now it helps some. I am 70 years old.