I've had stuff spilled on mine twice.
rescued it twice

first time opened it up to see how it was made and since it wasn't working anyway --
took it to the sink and ran it under the faucet.
I used warm water & rinsed well

then turn it or stand on edge to let it drain as a much as possible - overnight etc.
the next day finish up with blow dryer but not too hot
make sure no more water comes out

then plug it in and see if it works

does not apply for laptops -plain keyboards only