Before you even think about opening the laptop, go to ifixit.com and look at the disassembly instructions for that model. Either you'll come away with an "I can do that" attitude, or you'll run to the nearest repair shop.
Liquid can do all sorts of damage, and much of it is not obvious. As there's electricity involved, electrochemical corrosion starts quickly and, even after the thing seems to be fully-dried, can continue. Slow decay. New problems can pop up weeks and months later.
The sooner you can get this attended to, the better your chances of success. If you can't get the right screwdriver immediately, take it to a shop that can do the job, ASAP.