Name some household products which kill flies?
Cedar chips under your furniture will help to repel the fleas.
Some say use a light close to the floor and put a shallow pan of dish soap under the light at night. Fleas are attracted to heat.
Vacuum DAILY!!! flies lay eggs and hatch out every 10-14 days. They feed of us and our pets but live and breed in the carpet. If canister vac, try to empty it “away” from the house or SEALING the garbage bag right after you empty the vacuum or the fleas will jump or crawl right back out, and even though it’s a small hole on a bag vac, they can still get back out.
As long as your dog is in and out and you do not treat the yard and the dog along with the carpets, you will not be able to get rid of them.