All I can say is pray! Oh my goodness. Did it get on the furniture? I don't know how far a skunk can spray. I would drag all the furniture outside or into the garage so I could wash it. Open the windows and situate fans so some of the smell can be directed outside. You might tell them to call HAZMAT or Service Pro professional cleaners. They will know what to do. It would be worth the money to have some one else do it. Insurance might cover it. That dog must have really irritated that skunk for the skunk to follow it right up to the door, unless it was rabid.