Try using the new wet wipes that they sell instead of actual toilet paper. I used to occasionally get that stank but since I switched to those I NEVER have any of that. One of the best inventions of the last 50 years, it should make toilet paper obsolete. Think about it...if you get mud on your hands you don't take a dry towel and try to wipe it off. You get them wet or at least use a damp cloth.