We had some all over our deck heading for the back door. One or two had made it inside. I went crazy dusting their trail. Within 2 hours they were gone. It's not a permanent solution due to wind and rain. But it works fine and everything smells nice too I've used it inside before. It works the same. You just need to vacuum it once they are gone. And it comes out of carpet easy. Just don't wipe it up vacuum. It up.