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My dog's green nose discharge returns after antibiotics. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | spayed | 3 years and 11 months old | 57 lbs

Hello. My dog has had a mucous discharge from her nose for over a year. 4-5/day, slightly green, goes away with antibiotics but comes back shortly after. Xrays of skull, nasal passageway, chest show nothing. Blood test showed elevated white blood cells and liver enzymes. Mood, appetite, weight, energy all normal. Any ideas what this may be?

1 Answer

Most Helpful Answer

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Answered By Joy Fuhrman, DVM, MBA, CPA

Veterinarian

Published on December 29th, 2017

This could be a fungal infection or an antibiotic resistant bacterial infection. If bacterial and fungal cultures have not yet been performed, I would recommend that you request them. I would also suggest a consultation with a veterinary internist for a rhinoscopy with possible biopsies. You can find one in your area on www.acvim.org.

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