Thank you to all of you

for the helpful ideas!
I still like to find out whether it's yeast infection or candida ( maybe both?). But, I guess, while not knowing, she is still suffering, and the doctor may never give me accurate answers, so I will try to cover both areas. This may be overkill, but what else to do. Will get parsley water and some baking soda, maybe cranberry juice. I already bought a tincture with uva ursi and some other bladder related herbs in it, she'll get that.
The creams, I suppose health food stores would carry them? Are they for external use, or with applicator? I had gotten her a cream with tee tree oil, Vit C etc., but it had not helped....
Thanks again!