Also, after you get your house treated, you might want to make sure (if you haven't already) that your dog is on a really good dog food full of all of the different vitamins, brewers yeast, stuff like that. There are also supplements like The Missing Link for dogs which contain all of the supplements that are soooo good for your dog. You can sprinkle it on their food. Good luck! Fleas are a real pain.....We had them on our dog a couple of years ago,(luckily the house was spared) and I blamed them on the thousand squirrels that were always in our yard...Don't know if that was where they came from or not, but it sounded good!