Why my phone isn't charging?

Yesterday my Lenovo vibe k5 note fell in a bucket filled with water just about 2 to 3 cm. My phone get wet till above the speaker and immediately I take it out of the water and use hair dryer to dry it. After when I checked my phone everything is ok, but my phone is not charging above 27% and taking 3 hours 28 minutes to charge till 20% and above that is not charging even I charged my phone full night from 03:47 am to 9:28 am but then also my phone charged only 27% . Please help!