A friend of mine was using Borax on her carpets. Same as what was said here. We have used Frontline Plus and had good luck with it. Our Vet likes Advantix. You could flea bomb the house. Make sure you read instructions on the can before doing. Something else we did when we had a flea problems was spray the yard. You can buy a bottle of stuff that hooks to a hose and treat the yard also. I know treat the yard around the house seemed to make a differences also. We sprayed directly around the house where the dogs were being tied out to go potty.