Am currently in the same quandary; looking for some form of natural Antibiotics to eradicate a bacterial overgrowth in my gut.
I had terrible burning in the gut for over two weeks, acidity in the stomach, nausea.
Chinese doctor told me yesterday it was a bacterial infection in the colon (he explained the ratio good/bad bacteria!). The rest is fermentation in the stomach due to that infection.
Now I still have candida big time; but strangely enough, when my gut is burning like crazy, seems like candida symptoms go down.
I take the herbs, but I would much prefer to find a natural Antibiotics with which to treat this.