Never ever use hairdryers on electronic equipment!!!
Next time (but I hope this won't happen again!) dry it externally with a cloth and then put the thing in a closed box with uncooked rice (this draws humidity away) overnight or longer.
BTW, this helps with mobile phones as well, but in this case remove the battery immediately because some corrosion process takes on the electric circuits takes place if electricity is there
I hope this helps somenoe...
