I constantly drop mine so my tech savy son told me to IMMEDIATELY take out the battery and wipe it down to make sure it is not damp. Place it in a ziploc bag wrapped in a dry paper towel, put it where you won't forget where it is at :>). To dry the phone:
Place the phone with battery casing off and battery opening facing upward on the top of a lampshade. Make sure the lamp has a low wattage bulb. Turn on the lamp and turn the phone over every hour or so. Be patient, I have sometimes waited 24 hours before putting the battery back in. The warmth from the lamp will evaporate the water from the inside of the phone. When you have had it lying screen up for at least an hour and there is no humidity on the lcd screen it should be dry. I have had to do this to my Blackberry several times....Good Luck!