I have had the dilation, but it went back to the same problem within a couple weeks. It wasn’t painful and for me personally it was just temporary but people gave had success. I had it done at the hospital and had a light anesthetic. In and out the same morning. I too have had very bad narrowing, including The fact that my pouch is off to one side. (Rectocele) I do the warm water enemas in the morning and again in the evening before bed. Done it for 20 years. Never any issue. I’m still able to Eliminate fine As long as I take psyllium husk fiber powder with water 10 minutes before a couple of my meals to provide enough bulk to help things pass through. I just find using the warm water enema helps eliminate acids or residual fecal matter that still might be still there and keep the pouch cleaner or help with possible pain throughout day.