I found out last week that my 2 dogs and 4 cats have fleas. I have since then treated them all with BioSpot, vacuumed and cleaned entire house while spraying all carpet and upholstry with flea cleaner, daily flea combed dogs and cats, yesterday removed all animals and flea bombed the house and gave them flea baths. They are still scratching!!! They STILL have fleas!! What else can I do!!?? I think the mistake I made was in using BioSpot rather than Frontline. But unfortunately, I can't start them on Frontline now for three more weeks! Is there ANYTHING I can do in the meantime?? Really, I am at my wits' (and money) end!