Bunny, I'm sorry to hear this but things will get better. Shaving his butt area should help a lot. When my RB Pepper was very sick and had very bad diarrhea the vet shaved his butt area and it worked wonders. Ziggy still has some minor problems from time to time but usually just combing it out works well. Luckily Sky and Storm rarely ever have this problem.

Several of my cats also like to chew on cardboard or paper products. Usually they'll out grow it but Sky will still do this sometimes. I haven't tried any of the sprays but it's a good idea. Hopefully he'll out grow this habit. Good luck.