My son is 14 and had UC for we think about since he was 9. It took awhile for him to get diagnosed. While we were trying to find out what was wrong with his stomach we found out that he had ITP and had to be hospitalized.(another auto immune disease) He does take the lomotil and it helps sometimes but they tell him not to take all the time and no more than 25mg a day. They say it can be addicting and could constipate him. He takes the bulking fiber pills, eats cheerios,oats but mostly watery stool. He tries really hard to hold it. At fist he was good(the fist post op appointment doing good could hold it )but at our second post op( not doing so good and he has a hard time holding and pain, seems like not matter what he eats he is in bathroom) he is scheduled for I guess a colonoscopy to check pouch. All his blood work is good. Everyone said to give it time and it will get better.