@lou11
Sorry to hear about your phone. You can try switching it off, open all flaps and remove SIm and SD cards, leave it in a well-ventilated place for 24-48 hours (placing it in a bowl or bag of rice can facilitate getting rid of the trapped moisture), then try to start it and test the screen.
If it's still unresponsive then most probably it will be water-damage on the phone, and you'll need to contact your Local support to get it inspected.
