Petco Text Logo
Petco Pet Logo

  • Two Easy Ways to Start Earning Rewards!

My dog has kennel cough & yellow phlegm. Is it a bacterial infection?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | unneutered | | 5 lbs

Well my dogs had kennel cough for about a week n a half took him to vet they said it will leave on its own but today he coughed up some yellow phlegm I'm worried

1 Answer

Most Helpful Answer

Image profile

Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on April 30th, 2017

If it's been already over 10 days and he is coughing yellow phlegm, this is a sign that he needs an antibiotic course as it is likely that the viral infection has escalated to a bacterial infection. you should take him to the vet ASAP in order to get treated.

Vote icon

1Pet Parents found this answer helpful

Related Questions

Petco Pet Education Center
Health & Wellbeing
What fish dog food helps dry skin if my dog eats Science Diet?
Is your dog's dry skin a concern? A certified vet offers expert advice on finding the best fish-based dog food alternatives to Science Diet for essential oils.
Updated on February 04, 2026
Petco Pet Education Center
Health & Wellbeing
My degu has trouble breathing, coughing, and nose discharge. Help?
Is your degu struggling to breathe, coughing, or have nasal discharge? A trusted vet offers vital guidance on respiratory issues like pneumonia and how to help.
Updated on December 04, 2025
Petco Pet Education Center
Health & Wellbeing
My ferret has bloody urine and bladder stones. Is it an emergency?
Ferret has bloody urine, possibly bladder stones? A certified vet advises if waiting until tomorrow for an appointment is safe, especially if he's still urinating.
Updated on December 04, 2025
Petco Pet Education Center
Health & Wellbeing
Dog licking paws, fur loss, and jaw wound: Could it be allergies?
Is your Shih-Tzu crossbreed biting his feet, losing fur, or has a wound? A trusted vet explains these classic allergy signs and advises on treatments like Apoquel or medicated shampoo.
Updated on September 23, 2025
Petco Pet Education Center
Food & Nutrition
Is there a chart for dog food protein biological value and digestibility?
Dog food protein's biological value & digestibility: A vet explains why data is complex. Learn to judge quality by company reputation and your dog's health.
Updated on September 23, 2025
Petco Pet Education Center
Health & Wellbeing
Why does my puppy have bloody, mucousy stools despite diet changes?
Your 4-month-old puppy suffers from ongoing loose stools with mucus and blood. An expert veterinarian explores potential intestinal parasites and advises further fecal testing. Find answers here!
Updated on September 23, 2025
image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Book Now

Sponsored