It a funny thing that too many would never get up the courage to ask but it can hamper or ruin a hunt if you are covering lots of miles. I have tried a number of things with success over the years but the powders don't seem to help much if I got a little chaffed.
In preparing for a Spartan Race, 8 mile obstacle course, I came across a little gift from heaven, 2Toms Sport Shield. It is a roll on lubricant that is fantastic and has even worked when trying to minimize/resolve chafing that had already started. I have used it for nearly 5 months and am still on the first bottle, so it goes a long way.
My wife runs daily and does marathons and half marathons, she is also a huge fan. I also like it when I am doing long, hot construction work. No more looking like a seasoned, bow legged, bull riding champ.