Why is My Dog Coughing? A Guide for Chicago Pet Parents

Your dog just hacked their way through their morning walk. Or maybe they've been doing a strange retching sound after they drink water. Whether it's a single dry, hacking cough or full coughing fits that woke you up at 2 AM, that sound is hard to ignore.

Some causes are minor, and others need attention fast. We’re going to go through the differences to help you decide if you need to take a trip to a pet urgent care or emergency animal hospital, or if you can wait it out.

What Are the Most Common Reasons Dogs Cough?

There's no single answer to why your dog is coughing, because a lot of things can cause it. The type of cough, when it happens, and what else you're noticing alongside it all matter.

Kennel Cough

Kennel cough, the technical name is infectious tracheobronchitis, is one of the most common respiratory infections in dogs. It spreads easily anywhere dogs spend time together, including dog parks, boarding facilities, and grooming salons. Chicago has plenty of all three.

The signature sound is a dry, hacking cough that can seem like something is stuck in your dog's windpipe. Some dogs also have sneezing, nasal discharge, and a mild fever.

Most cases clear up on their own, but some dogs benefit from antibiotics or cough suppressants. Kennel cough is the dog equivalent of a bad cold. Miserable, mostly harmless, very contagious. Staying current on vaccinations helps reduce the risk.

Canine Influenza

If your dog just got back from boarding and is now coughing dramatically at you, influenza is on the list. Think of canine influenza as kennel cough's more aggressive cousin. Canine influenza follows a similar pattern: coughing, sneezing, nasal discharge, and lethargy.

It spreads fast between dogs in close contact. If your dog was recently at a boarding facility or dog park and is now coughing, canine influenza is worth considering. Diagnostic tests can confirm it.

Collapsing Trachea

A collapsing trachea, also called tracheal collapse, happens when the rings of cartilage in the windpipe weaken and flatten. The result is that distinctive goose honk or honking cough that small breed dogs are known for. This one sounds like an emergency even though it’s usually not. It does need careful attention, though.

Small breeds like Chihuahuas, Pomeranians, and Yorkshire Terriers are most commonly affected. The collapsing trachea tends to be triggered by excitement, pulling on a leash, or heat. Senior dogs are more likely to develop it.

Heart Disease

If your older dog has started coughing more and you've been chalking it up to age, it's worth getting a second opinion from a vet. Coughing in senior dogs is sometimes a sign of heart disease.

When the heart isn't pumping efficiently, fluid can build up around the lungs, leading to a wet, productive cough, rapid breathing, and lethargy. If your older dog is coughing more than usual, especially at night or while resting, chest x-rays and a full workup make sense.

Heartworm Disease

Heartworm disease is transmitted by mosquitoes and damages the heart and lungs over time. Coughing is one of the early signs, often alongside lethargy and reduced exercise tolerance. A chronic cough that doesn't fit any other explanation warrants a heartworm check.

Staying current on heartworm prevention keeps the risk low. Ask your primary vet or stop by Scout to discuss options.

Pneumonia and Respiratory Infections

Bacterial or viral pneumonia causes a deep, wet cough along with fever, labored breathing, and reduced energy. It often develops after another respiratory infection that wasn't fully resolved. Bloodwork and chest x-rays help confirm it, and treatment typically includes antibiotics.

Allergies

Dogs can get seasonal allergies when they react to pollen, dust, mold, and cigarette smoke. Dogs don't sneeze dramatically into tissues. They sneeze on you, repeatedly, and then look proud of themselves.

Allergies more commonly cause sneezing and itching than coughing, but they can contribute to respiratory irritation. Chicago's allergy season runs hard from spring through fall, and dogs that spend a lot of time outdoors are regularly exposed.

Foreign Objects

Dogs investigate everything with their mouths, which is brave and also constantly inconvenient. If your dog starts coughing suddenly and intensely, especially after being outside or chewing something, a foreign object lodged in the throat or airway is possible. This is the section where 'wait and see' is not the right call.

What Does the Type of Cough Tell You?

Not all coughs are created equal. Here's a rough translation guide:

• Dry, hacking cough: Often kennel cough or a tracheal issue
• Honking cough or goose honk: Collapsing trachea, especially in small breeds
• Wet, productive cough: Could be pneumonia, heart disease, or fluid buildup
• Coughing after eating or drinking: May point to an esophageal issue
• Coughing at night or when lying down: Can be a sign of heart disease
• Sudden, intense coughing fits: Consider a foreign object

When Should You Bring Your Dog to Scout Pet Urgent Care?

Scout Pet Urgent Care is the right call when the cough is getting worse rather than better, or when something else feels off alongside it. Come in if:

• The cough has lasted more than a day or two without improving
• Your dog is coughing up blood
• You're noticing retching, vomiting, or gagging alongside the cough
• Your dog has a fever, nasal discharge, or lethargy along with coughing
• The cough started after your dog was at a boarding facility, dog park, or groomer
• You're not sure what's causing it and want a clear answer

Your Scout veterinarian will tell you what they found and what they think you should do — no jargon, no pressure. You and your vet make the call together.

When Is a Dog's Cough an Emergency?

These signs mean skip urgent care and go straight to an emergency animal hospital:

• Difficulty breathing, labored breathing, or rapid breathing
• Blue, gray, or pale gums
• Coughing up blood combined with distress or collapse
• Your dog is gasping or can't seem to catch their breath

If your dog can't breathe normally, that's an ER situation. Scout Pet Urgent Care isn't a 24-hour emergency hospital. If you're ever unsure which level of care your pet needs, call ahead and we'll help you figure it out.

Frequently Asked Questions

Is kennel cough dangerous?

For most healthy adult dogs, kennel cough is uncomfortable but not dangerous and resolves within a week or two. Puppies, senior dogs, and dogs with a weakened immune system may need more support.

Can I give my dog anything for a cough at home?

Don't give human cough medications to your dog. Many contain ingredients that are toxic to dogs. A vet can recommend safe cough suppressants if needed based on what's causing the cough.

How do I know if my dog's cough is serious?

The pattern matters. A cough that appeared after exposure to other dogs and is improving is typically less concerning than a chronic cough, a cough accompanied by fever and lethargy, or one that involves any difficulty breathing.

Can allergies cause a dog to cough?

Allergies can cause nasal irritation and some coughing, though they more commonly cause sneezing and skin itching. If you suspect allergies are behind the cough, a vet can help confirm it with a physical exam and a review of the history.

Do I need an appointment at Scout Pet Urgent Care?

Walk-ins are welcome. You can also book online or call ahead if you want to give us a heads-up before you come in.

Get Your Dog's Cough Checked Out at Scout Pet Urgent Care

A cough that goes away on its own usually does so within a day or two. If yours hasn't, or something else feels off, that's worth checking out. Scout Pet Urgent Care is open same-day in Chicago. Walk-ins are welcome, or you can book online. We're here from 10 AM to 8 PM, every day.