Oh my gosh I had to reply to this!!!!
I dated a guy back in college that played football and he told me that the coach used to have them use Tripple A & D Ointment on the inside of their thighs for when they had chafing or "thunder thigh forrest fires". The stuff works great for being preventitive as well as treating current "fires", isnt too expensive and is easy to find (Wal-Mart).
Big Girls Rock!!