First: DO NOT apply power until it is completely free of liquid or moisture.
Second: Try using a Thirsty Bag to remove all the moisture from the device.
Drying bag for liquid damaged electronics. The Thirsty Bag is a liquid absorption tool designed to dry all the water out of your phone after it gets wet, protecting it from liquid damage. The Thirsty Bag needs to be used immediately after an accident. Buy — 50+ available at 9.95 each.
Victoria, the first thing I would do is to remove your battery. After that you do want to disassemble your phone and clean it with some high grade isopropyl alcohol. That will displace all the water that may have accumulate on the inside of your phone. If you do not remove that, you are standing a chance of getting corrosion on your boards. That will lead to failure later on. Once you cleaned it, replace your battery and see what, if any, damage you may have. Follow the link to the Electronics Water Damage pointed out by Derek Halman. If you are unsure how to disassemble your phone, you can download the service manual from here.It will show you each step of the disassembly. Hope this helps, good luck.