Okay, turn it off and remove the battery. Put the entire camera in an airtight container with dessicant packets (preferably) or dry uncooked raw white rice, and leave it sealed up for at least 48 hours. Remove, wipe off if needed, connect battery and turn on. If the screen does not function properly, has lines on it, etc, then there is internal damage to the lcd screen, which would need to be replaced (the screen can't be repaired). I can help you find a shop for this, if needed.
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