Kennel cough—also known as canine tracheobronchitis—is a common respiratory condition that many dog lovers encounter at some point. It’s typically mild, but the hacking cough and throat-clearing sounds can be alarming to dog guardians who haven’t seen it before.
This guide covers everything you need to know about kennel cough: what causes it, how to recognize the symptoms, natural treatment options, and a thoughtful perspective on the kennel cough vaccine, based on veterinary experience and research.
What Is Kennel Cough?
Kennel cough is a contagious upper respiratory illness in dogs. It’s often compared to the common cold in humans—typically mild, self-limiting, and rarely serious.
Common Symptoms Include:
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A dry, hacking cough
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Gagging or spitting up foamy, frothy saliva
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Sounds like your dog is “clearing their throat”
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Occasional nasal discharge or sneezing
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Is the Kennel Cough Vaccine Necessary?
Despite the fact that kennel cough is nothing more than the dog version of a cold, most boarding facilities, daycares, groomers and training centres, request the kennel cough vaccine as one of the conditions of admittance.
In the early years of my veterinary practice, I also used to use the kennel cough vaccine, until I noticed that dogs who were absolutely healthy before receiving the vaccination would come back with full-on kennel cough symptoms after getting the vaccine.
When I contacted the vaccine manufacturer, their representative suggested the dogs were likely exposed to the illness beforehand. While that is certainly possible, I observed that non-vaccinated dogs did not show the same spike in symptoms.
Most kennel cough vaccines are made with live modified organisms, which under certain conditions can cause mild symptoms of the disease they’re meant to prevent.
What the Manufacturer Safety Sheet Says
My deeper research led me to the British Medical Safety Data Sheet for the Nobivac KC kennel cough vaccine. It clearly stated the vaccine can cause:
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Nasal and eye discharge
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Sneezing
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Coughing
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These are all symptoms of kennel cough! The Safety Data Sheet also noted that these symptoms can persist for up to four weeks post-vaccination. More severe cases may even require antibiotic treatment.
This aligned with what I had seen in practice, confirming that the vaccine itself can cause symptoms similar to kennel cough. Based on this, I decided to stop offering the kennel cough vaccine in my clinic and instead created a guide to help dog guardians and dog-centric businesses make informed decisions.
What to Do If You Are a Dog Guardian
Remember that kennel cough is usually mild and self-resolving. Here's how to support your dog naturally and responsibly:
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Skip the vaccine.
If you use a service that requests a kennel cough vaccine, consider sharing this article and offer to sign a liability waiver instead. -
Feed a high-quality, raw or gently cooked diet to keep your dog’s immune system in top-notch condition.
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Prevent dietary deficiencies, and boost the immune system by giving your dog essential supplements. I give my own dog, Pax, the Fab4 essentials every day.
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Avoid processed foods, dairy, and wheat products—they can increase mucus and congestion of the airways.
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Choose clean, well-ventilated, low-stress facilities where your dog feels comfortable.
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What to Do If Your Dog Contracts Kennel Cough
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Allow plenty of rest but continue gentle, low-key walks to keep them happy and calm.
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Give homeopathic Spongia 30C or 200C, 2–3 times daily, until symptoms subside.
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Increase the FeelGood Omega dose to 3x the normal amount. This helps reduce inflammation and support healing of the upper airways.
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If symptoms worsen or your dog becomes lethargic, consult your veterinarian for further assistance.
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What to Do If You Own a Dog-Centric Business
If you run a boarding facility, daycare, or grooming salon, you can still protect the health of your canine guests without relying solely on the kennel cough vaccine.
Best Practices for Facility Owners:
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Create a waiver of liability for clients who choose not to vaccinate for kennel cough. Communicate clearly that you do not require the vaccine due to potential post-vaccine symptoms.
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Use the same disinfection, isolation, and hygiene protocols that you would use for a common cold.
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Ask every incoming guardian if their dog is currently experiencing any sins of coughing, or showing signs like spitting up clear, foamy phlegm.
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Ensure your facility is well-ventilated with good air quality.
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Prevent overcrowding and strive to create a calm, happy atmosphere to reduce stress.
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Frequently Asked Questions
Can vaccinated dogs still get kennel cough?
Yes.
How long does kennel cough last?
Most dogs recover within 1–3 weeks with rest and immune support.
When should I see a vet?
If your dog becomes lethargic, stops eating, or shows signs of pneumonia (wheezing, labored breathing).
Dr. Peter Dobias, DVM
PS: If you are looking for my general recommendations about vaccinations, click here.
