My MacBook freezes after liquid spill, guest user works fine.

I spilled a little bit of beer on the top left corner on my macbook pro. Turned it off immediately and put it on its side for a bit. After a while I tried turning it on again because the spillage was not to big and it worked perfectly. But the day after it froze when I tried to log in to my account. Turned it off to let it dry for another day, but it didn`t help much.

I sent it in to apple to let them check it out and they said that the logic board and keyboard needed to be replaced.

I opened it up to clean the logic board my self with some stilled water, but it didn`t improve anything.

Then I tried login in to the guest user and as a surprise it worked perfectly!

As an accident I started it in boot mode, cmd + R while starting, and was able to wipe the hard drive and reinstalling OSX, but couldn`t make a new user without it freezing. So then I restored it from a backup which went perfect, but it still froze when trying to log in to the account.

On the edge of giving up I bought a can of isopropanol and gave the logic board a bath and dried it with a hair blower. I was able to enter the desktop after that and open safari (some times), but it still froze in the end.

Now I`m out of ideas and hoping some of you have any advice about what to do.