Update: I think I was lucky because I didn’t suffer with SIBO-M for more than a year, so the Rifaximin worked for me. I am now mostly following the F-Factor diet, which is basically low carb plus a very high fiber/low carb cracker. Constipation resolved completely, and distention slowly going away. I am trying to be very careful with avoiding sugar because this is known to come back. I haven’t thrown up since September.
Glad to hear I can use Canadian pharmacy if there is a relapse, this drug is horrendously expensive in US. I am off the Allicin because it made me worse. Doing Ginger capsules, 3 Berberine per day, and 2 Atrantil per day. So far most days I feel normal!

I tried a naturopathic dr/ chiropractor nothing covered by insurance first bust $500 out of pocket
Wanted me to buy 5 plus supplements non approved by FDA
Wanted me on this highly restrictive diet my IBS registered nurse & also registered dietician did not approve of such a restrictive diet. She felt once I went back to normal food symptoms would all return.
Ibguard, hypnotherapy, excersise, working with trained IBS dietician , helped me , xifian did not symptoms just came back which if you read the studies very predictable they will.
Also the studies say how many false positives there are in testing even at the hospital and really only a 5 % have SIBO is last study I read. Breath test at home are not accurate.