If only clean water drops over your keyboard: unplug your keyboard from your computer, let the water drain, dry it as much as possible with a clean soft cloth or small vacuum, and let it dry overnight. Make sure your keyboard is completely dry before plugging it into your computer. Otherwise, give your keyboard a bath: Unplug your keyboard from your computer. Submerge the keyboard in a bin containing 20% isopropyl alcohol with 80% Distilled/Deionized water for a few minutes. Keeping the keyboard submerged, shake it a few times to remove debris and contaminants as much as possible. You can also take a clean soft cloth, submerge, and use it to scrub it. Drain the keyboard and let it dry overnight. Make sure the keyboard is completely dry before plugging it into your computer. You might need to repeat this process a few times if required.