Iphone 5 got water damage. How to deal with it?

My IP5 forgotten in washing machine for 3 mins and I took it out. Then I power off it and put in uncooked rice for 5, 6 days. But I think the moisture still be there because the screen looks not good. It faded and striped. I bought it 6 months ago via a friend, so I'm not sure that I can come to Apple Store and do something? By the way, if you have any experience about liquid damage and successfully repaired it, please share for me. Anyone lives in Garland, also, show me some good store that can fix it up.
Thanks for your help!

Added (1). Will Apple Store accept my phone for replacing or else? I didn't buy it in store, sign contract or anything. Just buy from a friend>"<(unlocked ver)

A phone might survive exposure to clean water if it wasn't turned on (or asleep) when the water hit, provided that it is given days to dry before being turned on again. If the water was dirty or soapy, the damage is probably permanent. A damaged phone will have to be replaced, as too many parts are damaged to make repair practical.

Water can destory electronics. Let it dry 2-3 days and hope it isn't damaged, if you turned it on then it may be to later. Otherwise you have to take it to an apple store.