My daughter had a bad case of fleas at her house this year. Her 6 year old daughter was waking up with welts every morning.

She had her exterminator treat the house twice and still had a problem. Hartz was put on the back of her cat's neck and the two dogs were dipped a couple of times. They still had a major infestation. And they are staying gone.

Finally, she bought Revolution for all three pets. Within 3 weeks they were 90% gone. In another two weeks, there was no sign of them whatsoever.

Revolution is fairly expensive, but treating your house is worse. And the Revolution also treats for heartworms. In the long run, it's cheaper and only one dose per animal per month.

Mary