Left shift key on mac is acting as if its being pressed.

Hello guys, I am having a issue and wanted a second opinion before I go threw with completely replacing my mac key bored. So I updated my mac a day before the issue with the shift key. I got out the shower and had wet hair and a single drop of water dripped onto my keybored. Personally i recall it dripping onto my right shift, but my right shirt works normal. I downloaded the Keyremaper and i use it on the left shift key as we speak, But i personally hate the idea of my keybored being rigged. Anyways the left shift isnt working. I am not sure what i need to replace, I know the top case but is it just the keybored or everything in the top case.