I found a natural remedy=bananas:
Ten years ago I had a major bowel resection from my Crohn's disease, and in the operation, my ileocecal valve was removed. I had every possible symptom mentioned here as well as daily bloody stools causing enough of a blood loss to knock me out. By accident however, 2 years ago, I ended up eating 6 bananas in one sitting (because they were all that was available), and discovered that the next day was the first one with no symptoms.
In the past 2 years, as long as I religiously eat at least 6 bananas (or more), I am fine. If I miss a day or two, the symptoms return. The happy news is that when I resume eating the bananas, I go back to being symptom free. By the way, after eating the 6+ bananas (at breakfast, usually coated with cashew butter or cream cheese to make the meal more appetizing), I can eat almost anything I want at dinner- even spicy foods and things definitely not on my prescribed Crohn's diet. (I skip lunch because the bananas curb my appetite, and thus despite the high caloric content of bananas and cashew butter, my weight is stable.)
Try the 6 bananas diet yourself. The first week may create bloating as you adjust, but that will soon go away. I am 6'2" and maybe you can get by with 4 bananas if you are smaller. If you try this, perhaps you can report your results.