Do not let your dog lay in his dog bed or the skunk oils will get on the bed. If possible, leave the dog outside to prevent the odor ridden oils from getting into your house. Determine where the spray hit the dog. Depending on your dog's hair type, you may be able to trim away or comb out some of the affected hair. When you're ready to wash the dog, only clean the sprayed area.
Skunk spray is oily and can easily be spread all over the dog.
You will most likely have to give the dog more then one bath, so save an all-over bath until the second or third washing. It may be particularly hard to get the odor out of those dogs who have thick double coats. If quick action is not taken it is possible to smell the odor on your dog for up to two years, especially when the dog gets wet. It is best to bath your dog with a shampoo before the skunk's sulphuric spray dries on the fur. There are several products you can buy at the store to de-skunk your dog.