Unhappy [Q] Battery charging problem.

Hi, last night as i was using brushing my teeth. Idk what gotten into me but instead of spitting the water back in the sink, i spitted it right into my phone....
I dried it right away, everything seems to be working normally, I charged my phone as i go to bed, it says phone is charging. But as I woke up, The percentage of battery just keeps going down instead of being increased.
I tried charging it again. Still not working, phone says it's charging but it seems like the battery not taking it. What should I do?
I'm owning a T-Mobile Galaxy Note 3. Using Darthstalker v7 if that's any helps eventhough I think this is a hardware issue