water on keyboard

Hi! Last night I spilled just a small bit of water on my keyboard and thought it was no big deal so I wiped it up and closed it for the night. This morning, my louder volume key wasn't working- it was decreasing volume. It eventually stopped working all together, and other keys too, including my P key, so now I can't sign into my macbook.

The other buttons that have stopped working are on the right side of my keyboard, and the delete button is now lessening my screen's brightness. It has been about 15 hours since I spilled water on it, and I'm not sure how to get my keyboard working again.