Need to get the horrible cat pee smell out -- not out of hardwood flooring, but out of the wood board that's underneath the vinyl tile in my laundry room. I recently demo'ed an old laundry room cabinet from 2 owners ago that the owners immediately previous to me must have been using to house their cat's litter box. The floor in the laundry room is tiled except for where the footprint of the cabinet was, which is just the bare wood board. The pee seems to have dripped down through the bottom of the cabinet and stained the wood board underneath, saturating it with the awesome stench of cat pee. The smell fills the laundry room. What should I do??