How to take care of water damaged iPhone?

My iPhone 5c took a wash in the washing machine and I blow dried it and let it sit in rice for 24hrs, it works fine now but my screen has dark spots so I know water is still present. What should and shouldn't I do?

Points

Honestly you can try using Silica Gels (if you cut open a diaper they're in there and if you don't know what they are they're the little packets you get in bags). But because of the way iPhone is designed you probably can't get them out. Apple designs their phones to break or get damaged so they can get money. I recommend a Galaxy S5 because they're waterproof and they're pretty badass. http://bgr.com/2014/04/08/is-the-galaxy-s5-really-waterproof/

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