How do l get water out of my daughters ear that is stuck in there from swimming?

Drops. You can make a solution with 50/50 vinegar and rubbing alcohol and drop it into the ear twice/day to prevent swimmer's ear and keep the ear canal clear of germs. Don't use this if there might be a hole in the eardrum from infection or tubes. Don't use if the ear hurts, since swimmer's ear is an infection of the skin of the canal and these would burn!
Peroxide. If there are no tubes in the ears, a few drops of peroxide usually helps.
Water in ears. After swimming, tilt head to either side drain out excess fliud. There is also "swimmer's ear solution" that is available over the counter. Ask your pharmacist to check your availibity.