Well my takedown courtesy of UC was 1996 its certainly a road trip managing a J Pouch have not had butt burn for many years, every now & then i get a ring of fire. Two things I have learned ( I am going to be graphic here) - Must find a toilet paper that works not harsh & does not stick to your Butt . My choice is Kleenex Cottonelle in Australia - No sticky Butt . Also you must realise when you wipe/dab your butt be reasonably gentle - but if you leave any residue it is like acid.
So a warm watered soft wet face washer( no additives just water) rewipe gently & pick up any remaining residue around the rim & cheeks.
This will help.