OK, I still think you should try the enteric coated capsules, because they will get the oil to the bowels. And yes, it will stop working because the bacteria will become resistant to it. You've got to help the good bacteria. Primal Defense has been helpful to me. And eating Sugar really makes the baddies flair up for me. The inulin seems to be helping me. I just got it at Walmart, I think it's called Fibersure or Fibersmart. it's by the Metumucil people and it says on the ingredients "Inulin".
Good Luck! It's a long road, but we have to just keep plugging away!