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My Dog Sneezes A Lot. What Should I Do? (Vet Advice)

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A dog that keeps sneezing is a common issue and one that we often encounter in our veterinary practice. Some causes of a dog sneezing are nothing to worry about, while others may indicate the presence of a more serious medical condition.

One such dog that I recently treated for excessive sneezing was Cindy. Cindy had spent the afternoon running off the lead in the fields near her house and had suddenly developed an aggressive sneeze – she couldn’t stop, it was almost constant. Cindy was clearly very distressed and something up her nose was causing her great irritation. A little sedation and examining her nose with a small cameral scope revealed a long grass seed. It had clearly become wedged up her nose while she was enjoying running around. I removed it and Cindy was instantly cured.

The following article describes what defines excessive sneezing, what the most common causes are, and what you can do to help your dog avoid excessive sneezing.

What Defines Excessive Sneezing in Dogs?

We consider a dog’s sneezing more than 3-4 times each day, on separate occasions, as excessive since it might signal a more serious issue. Of course, it can be normal for a dog to sneeze once or twice a day; we know ourselves that there are some situations when you just can’t help it. However, if your dog is sneezing too often, uncontrollably, violently, or if they have other symptoms with sneezing, you should visit your veterinarian.

If your dog is only sneezing 2 or 3 times in a day, and is generally well in themselves, it is probably nothing to worry about. It is also normal for your dog to sneeze during playtime. Dogs often curl their lips while playing a fun game, which can cause harmless sneezing.

Make sure you take note of any other symptoms that could indicate something is not right with your dog and talk to your veterinarian just to be on the cautious side.

When Should I Be Worried?

If your dog is sneezing excessively and often, and the sneezing is accompanied by other symptoms, such as lethargy or fever, you should take them to your veterinarian. Below is a list of possible accompanying symptoms that could be indicative of a more serious medical condition that would require a trip to your vet:

  • Lethargy
  • Excessive nasal discharge
  • Nose bleeding
  • Vomiting or diarrhea
  • Inappetence
  • Nasal swellings or asymmetry of the face

However, it’s important to realize that these symptoms may not always appear even if your dog has a new medical condition. Take a note of anything out of the ordinary to discuss with your veterinarian.

If your dog suddenly develops a nosebleed that won’t stop then you should take them to the vet immediately, even if it means going to the out of hours vet in the middle of the night.

9 Most Likely Reasons That Cause Dogs to Sneeze a Lot

Based on medical studies and our own veterinarian experience, we have compiled a list of the most common reasons causing dogs to sneeze excessively:

1. Rhinitis (est. 15-25% of cases): This is a common cause of excessive sneezing in dogs. Rhinitis occurs when the lining of the nose becomes inflamed and irritated. This is usually caused by an infection, but sometimes it can be triggered by other things like allergens and irritants. Sneezing may be due to Rhinitis if you also notice nasal discharge, nose bleeding or swelling of the nose. What can you do? You should take your dog to the veterinarian as it is likely that anti-inflammatory medication is required.

2. Foreign Body (est. 5-10% of cases): A nasal foreign body can also cause sneezing. This happens when the dog inhales a foreign object, such as a grass seed. Sneezing may be due to a foreign body if your dog is constantly sneezing, has nasal discharge (especially if it’s from only one nostril) and swelling of the nose. What can you do? To find out if there is a foreign body, you should take your dog to your veterinarian. They can use x-rays and nasal endoscopy procedures to find and remove foreign objects.


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3. Periodontal disease (est. 5-10% of cases): Severe dental disease can lead to tooth root abscesses. Due to how close the upper teeth roots are and the nasal cavity any inflammation or infection can easily push through into the nostrils and sinuses. This results in sneezing. What can you do? Take your dog to the vet. Medication can help in the short term but it’s likely that your dog will need a dental procedure to correct the issue.

4. Fungal infection (est. 5-10% of cases): A fungal infection called Aspergillosis is another possibility, although quite rare. Your dog will often have nasal discharge and be unwell if this is the case. What can you do? You should take your dog the veterinarian who will most likely want to take samples to culture for the fungus. Treatment can then be started.

5. A Virus such as Canine Influenza (est. 1-10% of cases): If your dog has other symptoms such as a hacking cough, sudden lethargy, excessive discharge from the eyes or nose, or a high temperature, they might have picked up canine influenza. What can you do? Please contact your veterinarian as soon as possible. If canine influenza is not treated properly, it may develop into pneumonia or another more serious condition.

6. Environmental allergies (est. 1-10% of cases): allergies can be triggered by things like dust mites and pollen. Sneezing may be due to allergies if you also notice that you dog has skin symptoms such as redness, itchiness or hives. What can you do? Your veterinarian should do a thorough examination and test your dog for allergies. This will help you determine the best treatment option. In the meantime, you can also keep indoor surfaces clean by regularly vacuuming and dusting. Also, be sure to clean your dog’s bedding weekly.

7. Food allergies (est. 1-10% of cases): Food allergies are a possible cause of excessive sneezing in dogs. The symptoms usually appear after your dog has eaten the food allergen for a number of weeks, so it’s important to keep track of changes in your dog’s diet. Sneezing may be due to food allergies if you also notice that they have symptoms such as diarrhea or even vomiting. What can you do? If you think food could be the cause for sneezing, then speak with your veterinarian about switching foods; a hypoallergenic diet is usually recommended.

8. Tick or Flea Infestation (est. 1-10% of cases): If your dog has a tick or flea infestation, then these pests can irritate your dog’s body and trigger a persistent sneezing episode – especially if they get up the nose as well. What can you do? Make sure to keep on top of your dog’s flea/tick treatment.

9. Tumors: Tumors within the nasal cavity may also cause excessive sneezing. Although these tumors are rare, it’s important to be aware of this possibility, especially if your dog is elderly. What can you do? Your veterinarian will first need to examine your dog, followed by possible imaging with X-rays and/or endoscopy.

More info can be found in this study.

Are Certain Dog Breeds More Prone to Sneezing Excessively?

Brachycephalic (flat-faced dogs), are more prone to sneezing due to the anatomical compression of their nasal passages – this includes bulldogs, pugs, pekingese, boston terriers and English bulldogs.

Be sure to be extra vigilant if you own one of these breeds and they start to sneeze.

Is There Anything I can Give My Dog to Help? Any Home Remedies?

Home treatment options are limited when it comes to a dog excessively sneezing, depending on the cause. However, there are some things an owner can do to reduce the likelihood of a dog sneezing at home:

  • Don’t change your dog’s food too often
  • Try to avoid letting your dog run off the lead through grass fields
  • Don’t use any aerosols or fragrance diffusers around your dog

What Questions Will My Veterinarian Ask Me?

Your veterinarian will want to know more about the symptoms and any possible causes of the sneezing. Be prepared for questions like:

Disclaimer: This website's content is not meant to be a substitute for veterinary care. Always consult with your local veterinarian for health decisions. Learn more.

  1. How many times is your dog sneezing a day? how often?
  2. Have you noticed any discharge from your dog’s nose? What does it look like?
  3. Did you feed your dog anything unusual before he started to sneeze?
  4. Can you think of any reason why your dog may have inhaled something irritating?
  5. Does your dog have allergies?
  6. Is there a plague of ticks or fleas in your home?
  7. Has anything changed in your dog’s environment recently?

Author

  • Alex Crow is an RCVS accredited Veterinary surgeon with special interests in neurology and soft tissue surgery. Dr Crow is currently practicing at Buttercross Veterinary Center. He earned his degree in veterinary medicine from the Royal Veterinary College (one of the top 3 vet schools in the world).

Disclaimer: This website's content is not meant to be a substitute for veterinary care, diagnosis, or treatment. Always consult with your veterinarian to determine the best course of action. Read More.

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