Dropped iPhone 4S in toilet and now the flash light won't go off?

So my phone is working perfectly fine and will charge and stuff. But in the back of my phone where the flash light/flash is, it won't go off. It's not as bright as the flashlight but it's annoying! What do I do? I tried turning my phone off and back on but it didn't work. And I'm not resetting my phone cause it deletes everything.

Take it in to the apple store.

Restore the phone, but back it up and you will lose nutin