Bro do u perspire alot? moist below? ur bird nest might need a trim..
its important to maintain personal hygiene but too much washing with soap can make ur bird sore.
You may like to try the below solutions.
-grooming ( less hair less moist, looks handsome and make ur bird look bigger too.
-drink more water ( pure water, cut down on those soda or flavored drinks )
-get an airy underwear ( your bird and balls will feel much better )
-wash with water after peeing. ( normal tap washing water if avail, otherwise use baby wet wipes )