Spilled unsweetened tea on my camera NEX 7. It won’t turn off now.

Spilled unsweetened tea on my camera NEX 7. It won’t turn off now.

I put the camera in a plastic bag with rice and sealed it. Took out memory card and battery. Did it yesterday. Still has issues - it will turn in, but not off. Does not display images on memory card. How long should I wait it out? Can it be repaired?