it might be worth a trip to visit your surgeon. During my first two years of post op, my surgeon found that the opening between by jpouch and and small intestine was too small/narrow. He had his nurse give me self dilators and I had to work my way up to the one they wanted me to be at over a long course of time. It is defiently worth doing it because it helps the opening so you can have an easier time emptying.
Also, if your getting itchy a small amount of desitin may help. It's really think and made for babies but when I was sick in the hospital with UC one of my nurses recommended it to me. Its messy but works well. Aquaphor sometimes helps too and it's not as thick.