I think there's water behind my iphone 6 screen?

I was just scrolling through social media and I noticed the screen on the left side seemed brighter than the screen as a whole. I thought it was just air bubbles from my screen protector. It has been raining the past few days so maybe some of the moisture got in, I haven't spilled anything on it. What should I do?

You do one thing, keep that mobile out where the sunlight will vapor moisture from the mobile.