get your kitten some vitamins then maybe she will stop mine does that to my bed covers shes a devil and its the only time she will be sweet so i let her do it have you ever heard of bitter apple spray. Cats hate the smell and they will stay away from any thing that smells like it call around to vets to see who has it because not all vets carry it. Spray it on things that she pees on and tends to scratch up and she may leave it alone.