MaryJane:
There are natural things that your daughter can do to treat the gall stones. Milk thistle is good for this and it is perfectly safe for the baby.
My father had gallstones, but he lived in China and they offered him either a surgical solution or some herbs in pill form. Obviously, he tried the pills first. :) They completely took away all of his symptoms and he NEVER had an issue again. My husband, in America during the same time, only had the option of surgery. :( I wish I knew what the herbs were and I wish that they would have these options in America.
I know milk thistle is very good for the liver. My husband took it while he was ill and it was very helpful. They sell it in pill form, or you can buy the seeds yourself (we bought Organic ones online, just to be safe), grind it like you do coffee beans, and make an infusion of it. My husband said it tastes like dirt :) but he said he got used to the taste. You are supposed to take it 30 minutes to 1 hour before meals.
I will continue praying for her.