Alinia is often thrown into the mix like other anti-biotics hoping it may help with a flare. Yes, Alinia is specifically for parasites, but is used as a "chaser" with others for uc. Flagyl, Vancomycin, Rifaxamin, etc., are for bacteria, but also used sometimes for random uc flares. I wish I didn't know this, but unfortunately I do. Doctors have a long list of meds at their disposal to run through on any given patient with IBD. They follow their protocol as to what order and for what specific symptoms. But, at the end of the day, it is a crap shoot (no pun intended).
Troy