What is the best herbal treatment for sibo ?

SIBO, documented?: Treatment is often offered empirically when sibo (small intestinal bacterial overgrowth) is suspected. However symptoms recur when the antibiotics are gone. Is this due to underlying ibs, regrowth of bacteria (or resistant ones!), parasites, altered GI transit, or something else? Bifidobacter-containing probiotics may reduce gassiness, a xifaxan (rifaximin) trial may help, but evaluation is best pursued now.