Are you doing any better? I have chronic cuffitis and have it somewhat under control with canasa. It took me 9 months to do so. Along the way I also had a wicked case of a C-diff infection. You are going to Dr. Shen so I'm sure he's checked you for this. I just want you to know I still have days where I go more than 10 times a day.
My Mayo doctor put me back on canasa, I was on anucort at the time I saw him, and told me to take it until it worked and gave me a 6 month prescription for it.
I hope Dr. Shen helps you get this under control -- soon.