I dropped my iPhone 5s in the toilet last night, what do I do?

I dropped my iphone 5s in the toilet last night! I quickly grabbed it out. It had an otterbox defender on it, I dried it took it out of the case, dried it again and blew in the headphone jack, speakers, and charging port. I then immediatly put it in a ziplock bag of rice and left it overnight. This morning I took it out turned it on and it was fully functional (finger unlock, touchscreen), I didnt check the speakers though. The screen on the top left has a streak (about an inch long) that looks like water damage. I turned my phone back off and put it back in the bag of rice and Im planning on checking it again later tonight. Is my phone ruined or can I make it go away? Also, will my phone be okay in the long run?