Iphone 5c water damage screen?

My phone was recently submerged in water for about 1 minute (accident). I put it in rice for about 36, took it out and turned it back on and made it work. Every button works, the touchscreen works and it charges. However, it seems that there's visible water damage on the screen. There's a grayish colored strip at the bottom of the screen, and a very bright thin one on the top along with a few spots. Can i do anything to fix it? If so what? Thank you so much!

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Added (1). 36 hours**

Try cleaning it with destiled water

I say send it to an apple store for them to take a look at it. But I do think that it needs to be send off for repair. But i do think it going to cost you because think the warranty dose not cover water damage

You may need to open it from the 2 screws located next to the charging port but you will have to remove the battery and if you do there's no putting it back on, so the best and easiest way is to send it back to apple

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