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Stubborn fleas won't leave my pets. How can I finally get rid of them?

Updated On September 23rd, 2025

Pet's info: Cat | American Shorthair | Male | neutered | 6 years and 4 months old | 10 lbs

I am searching for advice on how to get rid of fleas. Two of our animals seem to be allergic to them and we have been trying for awhile to get rid of them. We have given multiple dawn dish soap baths bombed and boraxed the house washed all clothing changed all animal bedding gave baths with flea and tick shampoo used flea dust flea spray flea combs and gave all our animals flea and tick treatments we tried natural too and yet they are worse than ever. We need some suggestions on what to do next.

1 Answer

Most Helpful Answer

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Answered By David Darvishian

Veterinarian

Published on December 1st, 2017

Hi and thanks for using Petco Pet Education Center, formerly Petcoach! Sorry to hear about your situation. Flea baths just kill what is alive on the pet. Once it's rinsed off, it's done, no residual flea killing activity remains. I don't recommend flea baths, flea sprays, flea dust, etc anymore. We have much better flea/tick products now and you will have to ask your local vet what they recommend. Sounds like you have an environmental problem too that is not under control. You may need to bomb the house to get on top of it. I like Advantage, Advantage Multi, Revolution, ParaDefense, among others for topical flea prevention. Do not bathe pets with these products on since the soap/detergent in the shampoo will strip some of the product off of the pet. I would stop bathing cats altogether. The dirtier the pet (the more natural oils are on the skin/hair coat) which makes these products work better. You may have to combine topical treatments with oral treatments until you get a handle on the fleas, this can take up to 3 months to ensure that the immature stages have all hatched from the environment. I would advise using Comfortis orally or another feline oral flea product that lasts for one month. Multimodal treatment is best when you have a problem. Treat the environment also, vacuum frequently. Good luck

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