Chosen Solution

My laptop got wet in rain and now keyboard is not working. Trackpad works fine. Even “Power Button“ works fine too. External keyboard works fine too. I opened macbook and already cleaned using isopropyl alcohol. I am confused how to find out whether its a motherboard issue or just I can buy new keyboard and replace it.

Water is non sugar beverage so its not hurting anything if it dries i say that you should hold it upside down and get out all you can. Take it to your nearest apple genius bar!