Hi,
If she wakes up and cries at night, I would go to her, but not feed her. With my ds, if he is crying hard, I will pick him up, and lay him down once he has calmed. If I need to I will rub his back or his head to help relax him once he is in the crib. Does your dd have a comfort item? This is a good way to offer security without having to stay with them. My dd and ds both have a small dog/cat and a taggie blanket. My ds with snuggle his dog and suck on his legs or ears for comfort, or on the silky tags on his blanket.
Good luck, Heidi