I'm sorry... the only thing I can suggest if the exploration of medications is out of the question is possibly some probiotics. Ideally, a powdered probiotic, but if this cannot be obtained, maybe small amounts of plain yogurt, or some (milk) kefir grains.
This may not help her, if her problems are more serious (they sound like they are) but I suppose that probiotics can't hurt at this point.
This may not help her, if her problems are more serious (they sound like they are) but I suppose that probiotics can't hurt at this point.