Good advice so far from jcPanny.
If I may add a little.
You should take the remote apart and rinse it out with water. (take out the batteries)
I know it sounds counterintuitive, but all circuit boards are washed off when manufactured. You have to remove the beer residue from beneath the rubber dome switches.
If, on the other hand, you tried to use the remote while it was wet with beer. It may be ruined.
So jcPanny's plan B, is also a good choice.