Ttrhp, not a stupid question - the label would be damaged or ruined if not protected. You will notice through a careful reading that most people in this thread are referring to use of a Groovmaster. It is made of two acrylic discs, each with an o-ring around the outer perimeter. The discs are the size of the label area. With one disc on each side of the LP, and held together by a threaded rod running through the rings and the LP spindle hole, and then tightened by use of a knurled, threaded handle, you can seal the label and wet at will, even soak.
I've been using one of these for quite some time and it is nice to see that their use is becoming more widespread because they are really effective. Do a search on E-Bay using "groovmaster" as the keyword. About $30-$35 depending on bid. Worth it twice over, IMHO. BTW, flipping the discs over allows use with 45's.