OKay, so this might sound really stupid, but I was watching a movie on my MacBook in the dark and I have a cold. So I bought one of those nose sprays to air out my nose.. Point is when in the dark I was putting back the spray on the table next to me, one very small drop (more like a bubble because of the air in the spray) fell off the bottle's top and right onto my "enter" key. I tried to dab it but a little portion, like 1/4 of that bubble/drop went inside the keyboard. It was very small. Anyways, I turned my computer off for 8h, to prevent any damages, now I turned it back on and everything works fine. Should I still be worried?