Iphone 6 water stains screen

Hello !

My phone had a very low sound comes out of the earpiece speaker where i could barely hear any phone calls and i had to use either speaker or earphones to receive calls.

I did try to clean it using toothbrush and toothpick but got nothing and then i decided to use an electronic cleaning solvent and dust cleaner. I successfully managed to blow up and gently remove any dust/dirt from the mesh (it was totally blocked !) ...

unfortunately, the screen is damaged and the backlight is not working properly anymore ...

I did try the rice thing but it didn't work , what should i do?

The iphone is working pretty well and screen touch and all it is functionality as well