You can try having her lean her head about 30 degrees to that side and aim a warm (not hot!) blow-dryer at her ear from about 20 inches away, sweeping it side to side; very often this will either dry the excess or cause it to drain. This will be the most helpful if the ear is actually hurting. Have her remove any earrings she is wearing if you do this; even a warm dryer will make metal uncomfortably hot.
The other thing that you can try is to put a few drops of a 1/1 mix of rubbing alcohol and white vinegar into the ear; that also helps to dry the water. You don't want to do this if she is in pain, only if she's getting that bothersome crinkly sound.
Another thing that I've found works for me sometimes is just to lie down on my side with my head on a low-temp heating pad. For some reason the warmth combined with gravity will sometimes tend to get the ear to drain.