I spilled water on my computer and some of the letter dnt work am i screwed?

okay 2 days ago my nephew spilled some mountian dew on my dell inspiron n5030 laptop and some of the keys dnt work letters u,i,o,p and r all dnt work...i flipped it over and i took out the battery i checked it a couple hors after the incident then the mouse didnt click it moved but i couldnt slect anything..so i put the battey back in and and this afternoon i check it the mouse works fine but the buttons dnt work..and after her did it i played with the computer for mybe 30 minutes and it was working fine..then suddenly the letters stared messing up..so what do i do?