My iphone fell in the toilet. What can I do to fix it?

My iphone fell in the toilet the other day. It was only in there for about 3 seconds but now it won't turn on. What do I do? I've soaked it in rice for about 36 hours and now charging it. I can make an outgoing call via Siri but nothing shows up on my screen. It is still black. Any suggestions would be greatly appreciated. Please leave any sarcasm behind. Thanks so much!