Do not plug it in! Until it is guaranteed completely dry, or you run the risk of frying the components . Blow it out with compressed air . Let it dry a bit . It should regain functionality if it was just a bit of water . .

This had happened with my iPad pro 10.5 after having it for 1.5 years . The sound had been cutting out intermittently when using the wired jack  for about 2 weeks prior ,I initially thought it was due to the headphones  themselves but  after aboit a week the iPad would randomly freeze and be stuck on  grey Apple screen  if it was  allowed to time out into sleep mode , it would only turn on again  up if hard reset . This happened a few times until I contacted apple support which advised me to do a factory reset.. that was what ultimately killed the machine . Everytime it tried to install the OS from iTunes from any computer using different cords it would flash  red for a couple seconds then fail and  error code. . Genius bar couldn't help me as it is out of warranty . I used the iFixit repair guide to open the screen and immediately saw the problem. A piece of the earphone jack.had dislodged and a tiny screw was free inside . Im not sure how that happened in the first place but as soon as I put the screw...