Pet Health

Dog Runny Nose: Causes & Treatment

Discover the causes of your dog's runny nose and effective treatment options. Keep your furry friend healthy with our friendly guide to canine nasal issues!
Author: Veterinary Team
Dial A Vet
Updated
June 6, 2025
|
Published
June 6, 2025
Close-up of a dog with a runny nose, highlighting symptoms and potential treatments for pet owners.

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Noticing your dog has a runny nose can be concerning. Is it a harmless cold or a sign of something more serious? As a pet parent, it’s natural to worry about your dog’s health. The good news is that a runny nose in dogs isn’t always a cause for alarm, but understanding the potential causes and when to seek help is essential.

⚠️ What to Watch For

A runny nose in dogs can appear in different ways. Paying attention to the type, frequency, and accompanying symptoms can help you determine whether it’s a minor issue or something that needs a vet’s attention.

  • Clear, watery discharge from one or both nostrils
  • Thick, yellow, green, or bloody nasal discharge
  • Frequent sneezing or sniffling
  • Difficulty breathing or wheezing
  • Pawing at the nose or face
  • Fever, lethargy, or loss of appetite

If your dog’s runny nose is mild and clears up quickly, it’s usually not a concern. However, persistent or severe symptoms may indicate an underlying health issue.

🔍 Possible Causes

There are several reasons your dog might have a runny nose, ranging from minor irritants to more serious medical conditions. Here are some common causes to consider:

  • Allergies: Dogs, like humans, can develop allergies to pollen, dust, mold, or even certain foods.
  • Respiratory infections: Viral, bacterial, or fungal infections, such as kennel cough or canine influenza, can cause nasal discharge.
  • Foreign objects: A small object like grass, dirt, or a seed can get lodged in your dog’s nasal passages, causing irritation and discharge.
  • Nasal mites: These tiny parasites can infest your dog’s nasal cavity, leading to sneezing, nasal discharge, and irritation.
  • Dental problems: Infections or abscesses in the teeth or gums can sometimes lead to nasal discharge.
  • Nasal tumors or polyps: Though less common, growths in the nasal cavity can block airflow and cause discharge.
  • Environmental irritants: Smoke, cleaning chemicals, or strong scents can irritate your dog’s nose.

Identifying the root cause often requires a detailed look at your dog’s symptoms and environment. If you’re unsure, consulting a vet can provide clarity and peace of mind.

✅ What You Can Do at Home

If your dog has a mild runny nose with no other concerning symptoms, there are a few simple steps you can take to provide relief at home:

  • Keep their environment clean: Reduce allergens by vacuuming frequently and using air purifiers.
  • Provide a humidifier: Moist air can soothe irritated nasal passages, especially in dry climates.
  • Wipe their nose gently: Use a damp, soft cloth to clean any discharge and keep their nose clear.
  • Encourage hydration: Make sure your dog has access to fresh water, as staying hydrated helps thin mucus.
  • Limit exposure to irritants: Avoid smoking, perfumes, or harsh cleaning products around your dog.

These simple steps can often help your dog feel better. However, if symptoms persist or worsen, it’s time to seek professional advice.

💡 When to Call a Vet

While a runny nose isn’t always serious, some situations require prompt veterinary attention. Contact a vet if you notice any of the following:

  • Thick, yellow, green, or bloody discharge
  • Discharge from only one nostril (this may indicate a foreign object or tumor)
  • Difficulty breathing, wheezing, or noisy breathing
  • Fever, lethargy, or loss of appetite
  • Persistent symptoms lasting more than a few days
  • Frequent nosebleeds

A vet can perform a thorough examination, including imaging or lab tests if needed, to diagnose the issue and recommend appropriate treatment. Early intervention can make a significant difference, especially for more serious conditions.

FAQs

Q: Can a dog’s runny nose go away on its own?
A: Yes, a mild runny nose caused by minor irritants or allergens often resolves on its own within a day or two. Monitor your dog closely and ensure they’re comfortable.

Q: Is a runny nose in dogs always due to allergies?
A: No, while allergies are a common cause, a runny nose can also result from infections, foreign objects, nasal mites, or other underlying conditions. It’s important to evaluate other symptoms and consult a vet if needed.

Book a $49 online vet consultation at https://www.dialavet.com for fast, expert advice.

References

While every effort is made to ensure the accuracy of this content - including vet review where applicable - this article is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. If your pet is unwell or you are concerned, please speak with a licensed veterinarian. You can book a $49 online consultation with our veterinary team  😄
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