That's the thing that sucks with this disease. There is no one remedy. Everyone responds to different things. What works for one may not work for others so just keep trying some of the stuff posted here. You could look into fecal transfusion also. Some people have had some good success with it. You may want to just stick it out with sheldons approach for awhile too. There is nothing in there that should cause more bleeding. Also, it's hard to put a timeline on what should be happening in that procedure. His approach is good, but his communication/people skills are lacking to say the least.
There is also remicade, humira, 6-mp/azathioprine... all pharmaceutical approaches, but still alternatives.