S.H.
Try "Hyland's Colic Tabs" which is for these ailments.
I've used it for my daughter, who had bad gas problems as a baby and it helped. It's homeopathic.
they have it available on www.amazon.com, or perhaps at your local natural food store.
Perhaps there are certain foods that are causing the gas pains? Or is it just anything she eats?
Good luck,
Susan