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My cat is scratching and losing fur. Why isn't flea treatment working?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Female | spayed | 8.82 lbs

Hi, my cat has been overgrooming/scratching herself so much that her fur is coming off and her skin is scanning. We've given her flea treatment and our vet also did the same but nothing's helped

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1 Answer

Most Helpful Answer

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Answered By David Darvishian

Veterinarian

Published on August 9th, 2017

Hi and thanks for using Petco Pet Education Center, formerly Petcoach! Sorry to hear about Oreo. Not all flea products are created equally and you want to make sure to use what your vet recommends. But having said that, it may not be flea related. Allergies, skin infections, intestinal parasites, nutrition, etc all play a role in skin and hair coat. External parasites of course must be addressed and it sounds like you have done that. It is possible that stress/anxiety can also cause over grooming. Your vet can assess her now with the new information that you are using what they recommended. They can do skin tests such as fungal Woods lamp, skin scrape, fungal culture and other tests to try to determine what is going on. Once those are done your vet can then advise a sound treatment plan. She may need antibiotics, steroids, fish oil, antihistamines, etc to get her back on track. Good luck with Oreo.

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