Probably as a consequence of his fall and decrease of his immunity Mocca lost a bit of fur on his back(you can't see it here cos these photos was taken before it begin) vet said he has mites but didn't said anything about washing the cage and changing all liter and bedding, she only said he needs to restore full immunity, so we have to give him vitamins and make him as comfy, easy and happy as we can. Another way is to give him a series of injections-we have to think this over:(