Post above is spot on. My lab was skunked right before Christmas. I still catch hints of skunk at times in the house.
The mixture above worked wonders for him, though, really got the stink off him. His cloth collar was just a loss, I didn't even bother with it, but that peroxide mixture saved his e-collar, even though there's till a hint of Pepe Le Pew on it from time to time. Mostly, it's when I take it off him at night that I smell it. Must be his body heat or something that brings it out? I don't know.
Keep an eye on the dog and see if he improves. Should be temporary, usually drooling, eyes watering, rubbing their face, etc....the spray is a serious irritant. So much so that my 90lb lab avoids ANY small furry creatures still, and it's since that encounter with the skunk. Hopefully he will chase rabbits for me eventually!