Traditional antibiotics didn’t work for my daughter either. We switched to Allimed and Neem natural antimicrobials with the help of a Functional Medicine Doctor experienced with SIBO and that seems to be helping. We also do the Specific Carbohydrate Diet. It’s a long road to healing and you must be patient but I believe healing is possible if all aspects of what this bacteria does is addressed. That means pancreatic and gallbladder enzymes need to be evaluated. A screening for a Hiatal Hernia and b12 levels checked. SIBO is notorious for disturbing all of these things. Everything needs addressed before you can completely heal.