Skunks leave a horrible smell behind when they get startled. Even if a person or animal is sprayed outside the smell may make its way inside in the house.
Use a mixture of half bleach and half water or a quart of peroxide with 1/4 cup baking soda. Scrub the area to remove any oily substances.
Open any windows and doors to help the room air out.
Incense or potpourri can help mask any remaining smells.