First time I went hiking, I went reg. It sucked- a lot- about 2 hours in. My legs were sweating and rubbing that sweat into sensitive areas. It occurred to me that leather is made in a similar way- rubbing salt into skin. I was in effect turning my scrotum into leather. Not fun... You know how I solved the problem? I wear boxers when I hike. Or go to pow wows, like I did today. Or when I go out in the summer when it's likely to be hot. Boxers are a life saver, and much easier to apply than the anti chafe. Sorry, Rocky. I always try to send business your way... but in this case, boxers are the best answer! If the problem continues or doesn't go away... then a trip to a doctor is in order! And don't let anyone tell you that you're less of a man if you wear undies. That's crap. It's not even a real (and in historical) tradition! It's based on myth and misunderstanding.