Chosen Solution

I spilled milk on my macbook pro keyboard, and while I got most of it out (I think) there are still some problems. I’m pretty sure it got under also. It only turns on while charging, and it says that battery should be replaced or it won’t hold as much power. Its resting in rice right now, with some occasional hair dryer blowing, and I’m working on getting a pentalobe screwdriver to open it up. After I open up the back, what should I do to save my Macbook?

I would recommend not to try anything until you can get the right tools to access the inside and take care of the Mac properly. Do not plug it into mains, do not try to turn it on, the more you touch it the more chances you have to kill it for good. Follow this guide, all steps to proper cleaning actions and needed items are there..good luck. MacBook water damage - The definitive guide