I'm new at this stuff too, but I'm reading that malic acid (apple stuff) helps with dissolution of stones. So perhaps she should consider fasting with freshly juiced apples. And/or have apples be part of her pre-cleanse diet. Also, try raw organic apple cider vinegar (small amounts in water).
I'm reading lots of interesting stuff on curezone associated with ACV (apple cider vinegar).
Supposedly raw egg yolks too?
You can read some of tsetsi's posts - she's big on the yolk.