For the past month, my shoes have been smelling worse and worse, so I decided to soak them in Woolite and then air dry them thinking that would take care of it. Upon removing the sole, I noticed that the footbed which is made of some squishy foamy stuff (and it's glued to the bottom) is covered in black spots. Soaking and drying didn't help at all. I also put them in the freezer for 24 hours. No change. Vinegar did not work. Lysol did not work. I wouldn't care except that they REALLY REEK. I mean, they stink up a room. Are they done for? Or is there some way to get rid of the mold (or at least the smell)