I second the suggestion for IBGard. The PA in my GI’s office told me about it years ago. I used to take it only intermittently but my episodes have sadly been more frequent lately and I take it daily. I was in Italy for a month and to my surprise didn’t do well there which hasn’t been the case for me before, even with the pasta and bread consumption that I’ve indulged in in the past. I had to resort to Imodium. I was afraid to go to Mexico recently but took IBGard daily and was fine. That said, I am now in the midst of a flare up which seems to be persisting so am at the moment eliminating dairy, gluten, and all legumes. It seemed to be triggered by lentils but I don’t get how a flare up can last so long after the offending food is out of one’s system. Does anyone else find this??