Fix your stomach! Before doing that you are wasting your time and money.
Think of your stomach as the drawbridge and if the stomach is compromised your drawbridge is down and your whole digestive system is open to compromise from anything you consume be it yeast, parasites etc etc. If food is not digested correctly then everything is badly affected. The infection is what is causing your leaky gut too.
Interfase+ alone is not enough to beat it because they are far tougher than that. You will have to do far better than that if you are ever to be free of them. I am currently reading Herbal Antibiotics - Natural Alternatives for treating drug-resistant Bacteria by Stephen Harrod Buhner and it gives some good ideas but seeing as the bacteria are unidentified it does make it much more difficult.