don't use a hair dryer - it coul make things worse
dieassemble it like shown in the [guide|2374|teardown]
the lcd is assembled from different parts, the water is between the actual lcd and the reflector/diffusor foils behind the lcd.
it's enough to disassemble it (very) carefully and clean it with a microfibre cloth - but be very careful with the lcd - they can crack pretty fast