Mi nano isn't owrking

Mi sister had driopped it in the bath tub and it was there for a second and then the creen turned black but it still payed music...then I had let it dry adn reset it by holding the buttons adn it aint work...then it was fine the screen showed up and everything...only problem is that the clicktable isnt working too....i dont wanna pay money because this was a gift and i want to figure it out best i can.. HELP!!!