Eww! Our problem is located solely to the basement now so that should be a 'cleansing' I will gladly miss, lol. We did have a bit of a problem upstairs, but it's under control now, but be super careful of your dogs ingesting any fleas. Turns out before we got rid of the upstairs problem both the dog and 1 cat ingested at least one and wound up with tapeworm. Treating the dog was easy, but forcing a cat to down 2 pills? Yeah, in cat terms of evil stares, I would be so dead right now. It's amazing she never tried to wash anything in her special kitty rinse, if you know what I mean.