Pixie will only use the pee pad at my house. If we go anywhere I have to take her outside to pee. There is an amazing spray I use:
Amazon.com: Wondercide Eco-88 32 oz Pet Stain and Odor Remover E8801: Pet Supplies
make sure you do exactly as they say. I usually soak up the pee then I steam clean it and then I use the spray.