Unless its a house dog, I wouldn't worry too much. The smell will fade away in a few days by itself. Take it from me, we had a dog that couldn't pass a skunk up. When he would bay it, the others would help him. Our she pack would get sprayed on a regular basis until that dog passed away. Not sure why but lots of hog dogs love a skunk.
Hmm hopefully its gone I'm a few days. Not saying she wouldnt but I've taken her hunting quite a bit and she's never messed with a skunk or anything like that. She does like deer a lot. But here lately we've had bad skunk problems around the house. Our land butts up against a hunting club and they come from there. Maybe she ran into one in the yard