Cuffitis is commonly treated with mesalamine by suppository or enema. It takes a while to work, but you could ask your GI if Canasa suppositories might help. Rectal steroids can help a bit more quickly, and might tide you over until the mesalamine starts working. Options include Uceris rectal or Cortifoam.
In the meantime, are you using any bowel slowers or fiber?