Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Why Is My Dog’s Nose Running? Vet-Explained Causes & How to Stop It

The sleeping dog's nose has a runny nose

You’ve been sneezing, and now you’ve noticed your dog has a runny nose. What caused his runny nose, and should you worry? What can be done to treat a runny nose in dogs? Let’s go over the possible causes and what can be done about your dog’s runny nose.

divider dog paws 2 oct 2024

The 9 Possible Causes of a Runny Nose in Dogs

1. Conformation

Some dogs have naturally narrower nostrils, which we call stenotic nares. This condition is more common in short-nosed or brachycephalic breeds like Bulldogs and Pugs. Sometimes, these dogs will have a bit of nasal discharge. They may also have other signs associated with Brachycephalic Obstructive Airway Syndrome, such as gagging and snorting.


2. Allergies

Allergies are common in many of our dogs. Allergies can develop into foods or environmental allergens, such as pollen and dust mites.

Signs of allergies include:
  • Sneezing
  • Watery eyes
  • Skin infections
  • Licking paws
a golden retriever dog licking its paw
Image Credit: Chendongshan, Shutterstock

3. Infections

Your dog can develop respiratory infections that contribute to nasal discharge. These include bacterial infections like Bordetella, viruses like distemper, and even fungal infections.


4. Dental Disease

Some dogs with dental disease develop tooth root abscesses that can lead to sinus infections. Some dogs with severe dental disease can also develop an oro-nasal fistula. This open communication between the oral cavity and the nasal cavity can lead to infections, as well as saliva and even food particles entering the nasal passages.

A lot of tartar/calculus dental disease in the dog
Image Credit: mojahata, Shutterstock

5. Parasites

Parasites like the nasal mite are found worldwide. These microscopic mites live in the nasal passages and can trigger sneezing, nasal discharge, and even a bloody nose.


6. Trauma

Trauma to the muzzle can impact the nasal turbinates within the nose. Your dog might show signs, such as a bleeding nose.

dog-nose-bleeding
Image Credit: W_NAMKET, Shutterstock

7. Neoplasia

Nasal tumors account for approximately 1% of tumors diagnosed in dogs. These cancers can cause facial deformities, nasal discharge, and nose bleeds. If you notice facial swelling in your dog, you must take it in for an exam immediately.


8. Foreign Bodies

Some dogs inhale foreign bodies like grass awns or foxtails. These typically cause one-sided or unilateral discharge, but they can migrate through the respiratory system and even cause draining tracts or abscesses.

dog sneezing on lawn
Image Credit: c3cinema, Shuttertstock

9. Clotting or Bleeding Disorders

If your dog has a bleeding or clotting disorder, it might have nasal bleeding, especially after trauma. These situations are often emergencies that need to be addressed to help stop your dog’s bleeding and intervene with blood products or clotting factors, as indicated.

divider dog paws 2 oct 2024

When to See a Vet for Your Dog’s Runny Nose

If your dog has a bit of the sniffles and a small amount of clear nasal discharge, you might be able to monitor it for a few days. If it has other signs, such as lethargy or trouble breathing, it must see a vet as soon as possible.

If your dog has coughing, thick mucoid discharge from the nose, puffiness around the muzzle, lethargy, inappetence, or epistaxis (a bloody nose), schedule a vet visit immediately.

If you are concerned or have questions about your pet’s health, you can also speak to a vet from the comfort of your own home to help make a plan. They can determine when an in-clinic vet visit should be made.

Did you know you can talk to a vet online? Click on the image or button below to schedule a call: PangoVet_Mention-in-Content Savings V1


Treating a Runny Nose in Your Dog

If your dog has a nosebleed, do everything possible to keep them calm. Some dogs also benefit from having an ice pack placed over the bridge of their nose. But you should get them seen immediately.

Female vet examining sick and sad Rhodesian ridgeback dog
Image Credit; Zontica, Shutterstock

At Home Treatments

Antihistamines

If your dog has a slightly runny nose, your veterinarian may suggest an antihistamine, such as diphenhydramine (Benadryl), cetirizine (Zyrtec), or loratadine (Claritin). Do not use the “D” version of these medications.

Probiotics

Try a probiotic to help bolster their immune system because the gut is closely intertwined with the immune system.

Honey

Honey may be useful for dogs’ allergies, but it’s not a cure-all, and some dogs should not have it. Raw, local honey may help with allergic responses, as dogs are exposed to very small amounts of pollen in the honey. Diabetic, young, and immunocompromised dogs should not have honey.

Humidifiers

If your dog sounds congested, place them near a humidifier or take them into a steamy bathroom.

Veterinary Care

Your veterinarian will likely need to perform specific tests or refer you for these, such as blood work, radiographs (X-rays) of the head and neck, and CT of the head. Your veterinarian may refer your dog to a specialist who can scope your dog’s airways. This tool, rhinoscopy, allows veterinarians to get a real-time image of the nasal cavities, looking for tumors, polyps, and foreign bodies.

Your veterinarian might send swabbed samples from your dog’s conjunctiva and throat to check for certain infectious agents. The veterinarian might suggest surgical correction if your dog’s nares are a problem. In some cases, they might also suggest fixing an elongated soft palate.

Dogs with nasal tumors may need a combination of surgery, chemotherapy, and even radiation to treat the mass.

Your veterinarian will likely utilize antibiotics or antifungals if they are indicated. In rare circumstances, veterinarians will use antivirals in dogs, but it’s not as common.

Talk to your veterinarian before you give any supplements or medications. They may have alternative suggestions, and dosing is often quite different between pets and people.

blood samples of a dog for lab testing
Image Credit: hedgehog94, Shutterstock

divider dog paws 2 oct 2024

Frequently Asked Questions (FAQ)

Should I be worried if my dog’s nose is dripping?

If your dog has a small amount of clear discharge from their nose and otherwise seems fine, you likely don’t need to worry about it, although you should still talk to your veterinarian about it.

How long does a dog’s runny nose last?

The length of time your dog has a runny nose depends on the underlying cause. Like most human colds, viral respiratory infections are often self-limiting and last 5 to 10 days. Other infections may need to be treated, or they could worsen.

divider dog paws 2 oct 2024

Conclusion

Many things can cause your dog’s runny nose. You’ll need to work with your veterinarian to determine the underlying cause. In the meantime, they’ll check to see if your dog needs supportive care.

See also:


Featured Image Credit: Anake Seenadee, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

5 Dog-Friendly Burrito Recipes You Can Make Today (Vet Approved)

Did someone say burrito? Burritos have become a desired cuisine in the U.S., and we’re sure no dog would turn their nose up...

Cane Corso vs Dogo Argentino: Differences Explained (With Pictures)

Some dogs are just built differently, and both the Cane Corso and the Dogo Argentino are prime examples. As huge dogs with similar...

Jindo Akita Mix: Info, Pictures, Care & More

Although they differ greatly in size, the Jindo and Akita share a surprising number of traits. Both are loyal, highly intelligent, and remarkably...

6 DIY Dog Hats You Can Make at Home (With Pictures)

Hats designed for dogs immediately add a boost of cuteness to your adorable pup. You can find all kinds of dog hats, and...

More related

Dogster Photo Contest: Dogs of the Week Winners (Mar 13, 2025)

This Week’s Winner Cutest Most Expressive Best Action Shot Sleepiest Silliest Most Dignified Enter Your Dog Submit your doggie for a chance to...

Why Are Dogs’ Noses Wet? 4 Vet-Explained Reasons

The first bit of any dog you’re likely to encounter is their nose since all dogs will always introduce themselves and investigate nose...

Moon Mother CBD Review 2025: Quality CBD Products for Pets and People

When it comes to holistic supplements, most people have learned of the power of CBD by now. This natural plant extract obtained from...

Can Dogs Eat Mahi Mahi? Vet-Reviewed Facts

Providing your dog with the best possible diet is a top priority for all dog owners, but sometimes we may feel like our...

Keep reading

Can Dogs Eat Jelly Beans? Vet-Verified Nutrition Facts & FAQ

If you have kids, I’m sure you’ve encountered your fair share of jelly beans. Maybe you’ve even eaten a handful or two (or more) in your lifetime. These colorful, small candies are practically a right of passage for childhood. But...

Can Dogs Eat Jelly Beans

Can Dogs Eat Mussels? Vet-Approved Benefits & Safety Tips

Dogs can eat mussels in moderation. Mussels are high in protein and other nutrients that may benefit your dog; however, they don’t provide everything your dog needs, so they should only be considered an occasional treat. It’s best to steam...

Can Dogs Eat_Mussels

Can Dogs Eat Syrup? Vet-Verified Nutrition Facts & Info

Our canine companions are pros at begging our food off us, and they aren’t picky either. Our pups are more than interested in eating everything we eat. But not all people foods are healthy for dogs; in fact, some foods...

Dogster-Can-Dogs-Eat-Syrup

KOHA Dog Food Review 2025: Pros, Cons & Recalls

Review Summary KOHA Pet Food manufactures premium food for dogs with allergies and food sensitivities. Several things set KOHA apart from most premium dog food brands. First, KOHA doesn’t sell dog food through retail stores like PetSmart or online retailers...

Dogster_KOHA Dog Food Review

Can I Buy Dog Food Using Food Stamps (SNAP)? 2025 Guide

As the economy continues to struggle, many families are finding it difficult to make ends meet. One way that some people are able to save money is by shopping for groceries using food stamps. However, is it possible to buy...

woman buying dog food

Can Dogs Eat Barley? Vet-Verified Nutrition Facts & Info

In recent years, higher-quality diets have been at the top of devoted dog owners’ minds, with ingredients like grains coming under sharp scrutiny. As consumers latch onto trends like gluten-free diets, many extend those values to their dog’s food, often...

Can Dogs Eat Barley

Can Dogs Eat Liverwurst? Vet-Verified Nutrition Facts & Risks

Liverwurst is a type of sausage made primarily of liver, spices, and other ingredients. If that sounds like something your dog might enjoy, you’re not wrong, but can dogs eat liverwurst? Liverwurst often contains toxic ingredients, so you’ll need to...

Can Dogs Eat_liverwurst

Can Dogs Have Prunes? Vet-Verified Nutrition Facts & FAQ

Dogs can have a number of fruits and veggies, as they are omnivores just like us! However, our systems are a lot different. So, even though we can safely eat prunes, you may wonder if our pups are able to....

Dogster-Can-Dogs-Have-Prunes