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My cat's persistent cough won't go away after medication. What's next?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | spayed | 2 years and 6 months old | 9.7 lbs

My cat has had a cough for about a month. She finished a 1 week dose of Clavamox to no result and is about to finish a 10 day dose of Doxycycline. Her cough, while less frequent and not as productive, is still there. I'm concerned that since she's had this cough for longer than what I (not a professional) would consider the length of a cold/secondary infection. If the cough persists when the medicine is done she will go back to the vet, what diagnosis/tests/next steps should I expect?

1 Answer

Most Helpful Answer

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Answered By Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

Veterinarian, Certified Veterinary Acupuncturist, Certified Canine Rehabilitation Practitioner

Published on March 20th, 2018

I agree with you that a cough that lasts more than a month is longer than I would expect if she was coughing secondary to a cold or infection. I would expect that the next step would be to take x-rays of her chest to evaluate her heart and lungs. You didn't mention how old Winnie is, but we certainly see asthma in cats. I will attach a handout with more information about that below. https://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=665 Good luck! I hope that was helpful and you can figure out what is causing Winnie's cough. Thanks for using PetCoach.

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