★★★★★
Cecilia, I recently healed my IBS! It was a complete surprise. I started taking thiamine for other reasons. And got this gift of healing, after 30 years of suffering.
I add two teaspoons of water soluble thiamine (either HCl or mononitrate) to my bath. It's like magic -- another wonderful result is newly soft and supple skin. Best of luck to you! (I do take a B complex orally as well.)