Rectal Stump Mucus causes extreme pressure and discomfort (no pain)

(Loop Colostomy, Dec 2023) Every day, often a few times a day, I feel much pressure and discomfort in my rectal stump because of rectal mucus. No pain. But the effect is horrendous, like sitting on a golf ball or marble, and has sent me to Valium or alcohol on more than one occasion. (Not good solutions, I know.) I use a water enema to flush out the mucus which can be tiny solid bits, or thready pieces which look like egg white. And yes I've tried glycerine suppositories, and also zinc ointment. My surgeon did a Flex Sig (Flexible Sigmoidoscope) in hospital in late January and two weeks later a brief sigmoidoscope in his office and still found nothing. He scripted me Proctodan-HC (Pramoxine Hydrochloride, Hydrocortisone Acetate & Zinc Sulfate Monohydrate) suppositories. No help really. He's sending me for a second opinion to another doctor. He does not want to do a stump removal...they can end up being worse than the problem. I've read all I can find so far on the subject, talked to ostomy nurses and others. No one has any additional advice.

Any one else have this problem? Any solutions out there? Please.