order a new keyboard from ebay and take it to a repair shop and ask them to
dry and clean under the old keyboard, and replace it with the new one
I dont recommend to use the laptop until serviced because some of the liquid spill can go to the motherboard and you then lose your laptop.
unless they're professional, we actualy wash your motherboard with miniral water and leave it to dry for 3 days to makesure the liquid spill wont affect it.