So here's the thing.
You can have ordinary pouchitis, or not. Pouchitis is a range of disorders with various causes. If it is more about IBD and less about an inflammatory response to normal bacteria (ordinary pouchitis), then it is more complex. You can also get diversion pouchitis, which is caused by the LACK of the fecal stream. Most people do not realize that the intestinal mucosa is nourished partly by nutrients in the fecal stream; short-chain fatty acids in particular. In that case, diversion is the problem, not the cure.
They treat your pouchitis with the most commonly used medications, antibiotics, first. If that fails, they try others or combinations. If that fails there are IBD meds, including steroids. But, steroids are only for short term use until something else kicks in. Intolerance of medications is a failure too.
Jan