I dropped my phone in the pool a few years ago ... immediately after, I pulled it out - took out the battery out and tried to dry it all as much as possible with a towel. Then I left it in between my window and closed blinds on the sunny side of the house for the remainder of the day.
It did the trick. All the water evaporated and nothing on the phone or battery melted.
I know, ADG - Popular Mechanics suggests against it BUT it worked fine for me ... and the phone lasted with no issues until I upgraded it a year or more later.
