Reverse Sneeze in Dogs: Should You Worry?

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By Janice Jones     |Last Updated November 12, 2019

A reverse sneeze is a common occurrence in some dogs, especially brachycephalic breeds and small dogs and can sound menacing and even
give the impression that the dog is choking or worse. 

Causes of Reverse Sneezing

Owners unaware of the problem can rush their dog off to the emergency veterinarian thinking the dog is about to die. But relax, it sounds worse than it is. 

The medical term for Reverse Sneezing pharyngeal gag reflex or paroxysmal respiration.  The dog sounds like he is trying to inhale his sneeze!  In reality, it is caused by a spasm in the throat and soft palate that is triggered by an irritant.  

This honking cough
sound occurs when the dog inhales and exhales air quickly.  Often it results when a dog has a minor post
nasal drip or some other minor irritant at the back of the throat. 

People cough to “clear their throat” but dogs
honk. This can be a frequent occurrence especially in dogs that suffer from
allergies.  Dogs can be allergic to dust,
pollens, cigarette smoke, household cleaners, and even human perfumes.

You might
even notice your dog doing this frequently when the temperature drops or rises
suddenly. For example, this can happen when your dog first comes indoors during
a cold winter day.  The drastic change in
temperature triggers the spasm.

Other dogs
may eat or drink too fast and fall into an episode of reverse sneezing. 

Another cause
that can trigger a spasm occurs when the small dog is pulling on a leash
attached to the collar. Walking a small dog wearing a harness is much safer. The
pressure that the collar exerts on the throat can bring on the honking
sound. 

Small dogs
have a tendency to run around wildly at times and the very act of running
wildly, though blissful to them, may trigger a reverse sneeze.

How do I know if my dog is having a reverse sneeze?

• People who are unfamiliar with the sound might think their dog is having
  a seizure, gasping for air, or about to die. 
  Luckily, this is a harmless event and especially common in brachycephalic
  dogs such as the pug, Shih Tzu, Boston terrier, and Lhasa Apso. It is more
  common in small breed dogs, possibly because they have smaller throats, but it can happen in any size
  dog.
• Reverse sneezing is not really a health problem, and the whole episode may last for less
  than two minutes. You should not confuse this with a more serious condition
  called Tracheal collapse, which does require medical attention.

• The reverse sneezing is
  not the same as an actual sneeze, but it is not dangerous.    Dogs
  do not pass out during reverse sneezing, and they do not collapse, however,
  they can last from a few seconds to a minute or more. This can make the entire
  episode scary for a concerned dog owner.
• Honking, hacking, or snorting sounds are the most
  characteristic noises of a reverse sneeze. The dog may extend his/her neck
  while standing with elbows extended.  One
  way you will know for sure if it is a reverse sneeze or something else is to
  perform the simple maneuver described below. 

The sounds that a dog makes during a reverse sneeze is unforgettable and once you’ve heard it once, you’ll be able to recognize it in any dog.

Treatment

Luckily, the cure is painless and very cheap.    What should you do? You can usually stop a reverse sneeze easily in your
small dog.  To stop a reverse sneeze:

• Gently rub the throat of your dog.  The spasms will cease after they swallow, and
  that is the end of it. 
• If that does not work, take your dog outside for
  some fresh air. 
• Another option that works well is to cover your dog’s
  nose, so that he is forced to breathe through his mouth. 
• If you trust your dog not to bite you, you can try to
  open his mouth and press on his tongue. 
  This opens the airways and stops the spasm.
• If all else fails, cover his nose and gently massage
  his throat.  This last method will stop
  the episode. 

What if
I do nothing?

Don’t
worry if you choose not to do anything to stop the spasm.  They will cease on their own.

When Should I Worry?

If
reverse sneezing becomes a chronic condition, occurring frequently, or lasting
longer, you may want to make an appointment for the dog to be checked out. 

There may be other problems that are
causing the irritation such as tumors, nasal mites, a kennel cough or
respiratory tract infection or even collapsing trachea. 

Sometimes
treating the allergy is all that is needed to reduce the incidence, but you
will never know unless you get your dog to the veterinarian.

Is there anyway to prevent reverse sneezing from occurring?

Since the major culprit of reverse sneezing is some type of environmental irritant, the best way to prevent the problem is to remove as many irritants from the air as possible.  But, that is easier said than done.

Here are a couple of suggestions that might help.

• Don’t smoke around your dog
• Avoid products such strong perfumes and cleaning chemicals that leave strong odors around the home.
• Use air conditioning, replace air filters and leave windows closed especially on windy days.
• Vacuum frequently and use a hepa filter to trap particles in the air.
• Teach your dog not to pull on the leash when you are out-and-about.

References and Further Reading

Canine Nasal Mites

Reverse Sneezing in Dogs

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