What else do I do if my iPhone gets wet?

So I have an iPhone 5s about 6 months ago and everything was perfectly fine until it got wet. I was outside and I put my phone down, my friends mom accidentally moved her sprinklers that she had on and it water sprinkled on my phone. I don't know the exact time it got wet probably for 1-3 mins under the sprinkler and as soon as I found it I took it out and the color changed and my phone was like double everything. I immediately took the case off and dried it as much as I could. However, I did not know that you had to take out the SIM card so I didn't. I dried it and put it in a jar of sand without the case and turned it off. About 3 hours later I checked it and the top of my phone seemed light but normal and the bottom were pink lines. I kept locking it and and checking it and it would either be double everything or pink lines. It seemed normal a couple of times so I was grateful for that but my question it while my phone is still working its that how do I make the double and the pink lines go away. I will be eternally thankful if you know how and it would be amazing if you could help me! It's the only phone I got and I'm not really helping my mom at all with money to buy anything to fix it. It would be great.

It seems as if you've already tried drying it out. I'd call the apple support number. They're very helpful, they helped me when my phone got wet.

Might as well wet your pants