Here is another interesting read on mercury and colitis
http://www.mercurypoisoned.com/rob_sherwood.html
There was a person on the IBS forum who had tried for 30 yrs to get rid of IBS. He had 5 mercury fillings removed as a last resort. His IBS is now gone. He posted in the last week if you wanna check it out.
2400 mg Asacol + 500mg suppositories as needed
Acidophilus
No Stress and a positive attitude (mostly!)
My colon appears to be acting somewhat normal (ssssshhhhh...don't jinx it)