If your dog has suddenly developed a dry, honking cough, one that almost sounds like something is stuck in their throat,  kennel cough is very likely the culprit. It’s one of the most common canine illnesses out there, and despite the name, it isn’t only linked to boarding kennels. It can spread anywhere dogs gather: dog parks, daycare, grooming salons, training classes, or even a quick sniff-and-greet on a walk.

The good news is that most cases of kennel cough are mild and manageable at home. The important part is knowing which symptoms are “watch and wait” and which ones mean it’s time to pick up the phone and call your vet. As a boarding and daycare provider, we take respiratory health seriously at New Inn Kennels, and we want dog owners to feel confident telling the difference.

Here’s what we’ll cover in this blog:

  • What kennel cough actually is and how dogs catch it
  • Typical symptoms of kennel cough
  • When it’s safe to monitor your dog at home
  • Warning signs that mean you should call the vet
  • How to help your dog recover comfortably
  • How boarding facilities help prevent and manage outbreaks

What Is Kennel Cough, Exactly?

Kennel cough, medically known as canine infectious tracheobronchitis, is an inflammation of the upper airway caused by a mix of viruses and bacteria — most commonly Bordetella bronchiseptica, along with canine parainfluenza virus. It’s highly contagious and spreads through airborne droplets, direct contact, and shared surfaces like water bowls, toys, and bedding.

Because it spreads so easily in group settings, it’s common in places where dogs mix closely together. This is exactly why reputable boarding kennels and daycare centers require up-to-date vaccinations and monitor dogs closely for early symptoms.

Typical Symptoms of Kennel Cough

Most dogs with kennel cough will show:

  • A persistent, dry, honking cough (often described as a “goose honk”)
  • Coughing that worsens with excitement, exercise, or pressure on the collar
  • Retching or gagging, sometimes bringing up white foam
  • Mild lethargy
  • Occasional sneezing or a runny nose

In uncomplicated cases, dogs usually remain bright, alert, and interested in food and play, despite the cough. This is actually one of the most reassuring signs,  a dog who’s coughing but otherwise acting like themselves is generally not in immediate danger.

When It’s Safe to Monitor at Home

If your dog is coughing but otherwise behaving normally, home monitoring is usually appropriate. Signs that support a “watch and wait” approach include:

  • Your dog is eating, drinking, and playing normally
  • The cough doesn’t worsen significantly day to day
  • There’s no fever, and energy levels stay largely unchanged
  • Your dog is up to date on the Bordetella vaccine
  • Symptoms started recently and are mild

During this period, keep your dog away from other dogs to prevent spreading the infection, and let your vet know your dog is showing symptoms, even if a formal appointment isn’t needed yet. Many vets are happy to advise over the phone and flag what to watch for.

Mild kennel cough typically clears up within one to three weeks, similar to how a human cold runs its course.

Warning Signs That Mean It’s Time to Call the Vet

While most cases are uncomplicated, kennel cough can occasionally progress into something more serious, particularly in puppies, senior dogs, or dogs with existing health conditions. Contact your vet promptly if you notice:

  • Fever or noticeably reduced energy
  • Loss of appetite lasting more than a day
  • Breathing difficulty rapid, labored, or noisy breathing
  • Coughing up thick, colored (yellow or green) mucus
  • A cough that lasts longer than three weeks without improvement
  • Worsening symptoms rather than gradual improvement

These signs can point to a secondary bacterial infection or pneumonia, both of which need veterinary treatment, sometimes including antibiotics or further diagnostics like chest X-rays.

As a general rule: mild and stable means monitor; new, worsening, or systemic symptoms mean call the vet.

Helping Your Dog Recover Comfortably

Whether you’re monitoring at home or following a vet’s treatment plan, a few simple steps can support recovery:

  • Rest is essential. Limit vigorous exercise and excitement, which can trigger coughing fits.
  • Switch to a harness instead of a collar to reduce pressure on the trachea.
  • Use a humidifier or steamy bathroom to help soothe irritated airways.
  • Keep hydration up, and offer soft, appealing food if appetite dips slightly.
  • Isolate from other dogs until your vet confirms your dog is no longer contagious, typically around two weeks from symptom onset.

 

Frequently Asked Questions

1. Is kennel cough contagious to humans?

 No. Kennel cough is not known to be transmissible to humans. It spreads between dogs, and in rare cases, to other animals.

2. How long is a dog contagious with kennel cough?

 Dogs are generally considered contagious for around two weeks from the onset of symptoms, though this can vary depending on the specific cause.

3. Can a vaccinated dog still get kennel cough? 

Yes. The Bordetella vaccine reduces the risk and severity of kennel cough but doesn’t guarantee complete protection, since multiple viruses and bacteria can cause the illness.

4. Does kennel cough always require antibiotics? 

No. Many mild cases resolve on their own with rest and monitoring. Antibiotics are typically reserved for bacterial cases or when a secondary infection develops.

5. How can I tell the difference between kennel cough and something more serious, like pneumonia?

 Kennel cough usually leaves dogs otherwise bright and active despite coughing. Pneumonia often comes with fever, lethargy, reduced appetite, and labored breathing, these signs warrant an immediate vet visit.

6. Should I cancel my dog’s boarding stay if they have a cough? 

Yes. Boarding facilities will ask you to postpone your dog’s stay until symptoms clear, both to protect your dog and prevent spreading the infection to other dogs in their care.