My iPhone must have gotten condensation it

My iPhone must have gotten condensation it it from being outside of the shower because when I went to call someone my speaker for phonecalls wasn't working but my speaker when playing a song was. I got in my car, and put it on the dock that blows out air. I didn't realize that there was water damage, but when I went to answer the phone, my phone was going crazy. I couldn't hear the person talking and they couldn't hear me.

I then put it in rice, I did a factory reset via iTunes, and the screen has a white line vertically up from the battery to the top of the screen. I waited, did the reset, but walked away from my computer and it seemed as though the update was done, however, my apple symbol on my phone was still blinking. I plugged my iPhone back in, keeping it in rice and am attempting to do the reset again. Now my iTunes says Preparing iPhone for Software Update

SOS PLEASE HELP!

[Re-Titled by Moderator]