|When you have spilled liquid on a laptop, what you are supposed to do, for the greatest chance of something to NOT be damaged , is to immediately unplug the AC adapter if it was plugged in at the time, AND remove the main battery !|
Then, at whatever pace, you find yourself a Service or Maintenance manual for the model, carefully open up the laptop, and REMOVE all liquid or the dried deposits from liquid that you find.
If you don't want to do that yourself, take it to a local place that repairs laptops and have them do that - that's a frequent thing that they do.
It's just plain stupid to use a laptop after you have spilled liquid on it unless you have done that ! Even dried deposits from a spill can cause your laptop to be damaged furher !
Laptop keyboards are a frequently replaced item and there are plenty of inexpensive clone new keyboards for sale on the web in most cases. However, there are often many possible keyboards for a specfic model - you need to buy the right one. The part number of the keyboard is usually on a stuck on label on the bottom of the keyboard, but you will have to find out how to remove the keyboard in order to find that.
If the laptop seems to work fine with a USB keyboard, there may be nothing else wrong with it.