Dear DHARAM,
How did you come to know this info about Ulcerative colitis (that bile is acidic etc..). Also from where did you get this pranyama technique that you suggested?
I have been suffering from UC for the last 2 years and out of curiosity I am asking you. I trust you have given good information because when I do Sitali and Sitkari pranayam (something closer to the pranayama you suggested), it looks like the symptoms reduce a lot based on my personal experience.
But I am still wondering how you have this info, I am curious to know more about it. Please I request you to tell me.
Thanks,
Sashank