I recently bought a fairly old house (circa 1900). I am in the middle of demo-ing the full bathroom and need some help. After removing the fiberglass shower wall, I found standard drywall which was, of course, moldy. That drywall was nailed on top of wood paneling. The kicker is that the walls for the front and back of the shower were built right up against the drywall/wood paneling on the back wall.
The walls at the front and back of the shower are supporting drywall for a closet on one side and the kitchen on the other. I am not renovating either of those rooms so would like to minimize damage to them. What would be the best way to get rid of the mold and get this area ready for the new tub?