My holistic vet said just keep vacuuming and get a flea comb. You can buy a plastic one at petco or petsmart for about $1. Use several times a day and keep cleaning the carpet. Also I read somewhere that any dog shampoo will do, just leave on the dog for about 5 minutes if possible. No need to get any harsh chems on the dog for it to be effective. You might have to do all this for about a month to break the cycle.