How to fix my iPhone 5 speaker? - 1

I went to the lake today, & slipped on a rock and fell in the water about halfway. My phone was in my hand and went under water for like 2 seconds. I just realized that the only thing wrong with it is the speaker doesn't work. Headphones work, just not the speaker. Is there a way I can at least try to fix it without taking the phone apart? Any tips that may fix the problem? I have warranty, but I had to get my phone replaced only a month ago, so my moms really mad. I'm in desperate need of help!

For water damage just place your device in a bowl of rice and it will attract asians who will happily fix your phone for you