wireless keyboard problem

I spilled drink on the keyboard yesterday and after it dried it was all sticky. Today I took out its batteries again and washed it with water, left it to dry under the sun and once it looked dry enough I put the batteries back in and turned the compute on.

And the left ctrl button stopped working after a while. So I pressed connect. It didn't work. I restarted the computer. Then it just acted as if it was always pressed. I shut both of them down and restarted them. Now it simply acts crazy, sometime as if it's not there and sometimes it's stuck on "on". I'm using the virtual keyboard from the touch screen to type this right now. It hurts my fingers because it's vertical.