Clindamycin was prescribed for me for an abscessed tooth, and while it cleared up the abscess within a couple of weeks, developed mucousy, bloody diarrhea. A colonoscopy showed ulcerative colitis, a contraindication for this drug. My specialist prescribed Salofalk for 9 months. So far so good and that was 3 years ago. Don't know whether Salofalk is prescribed for cats, but you might ask your vet about it. Hope you can get her condition cleared up soon. Good luck.