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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

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

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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