Reverse Sneezing in Dogs: Causes, Symptoms, and What to Know

Reverse sneezing in dogs, sometimes called dog reverse coughing and sneezing, is a surprisingly common but often alarming event for pet owners. Although it can look dramatic, most episodes are harmless and short‑lived. Understanding what’s happening, why it occurs, and when to seek veterinary help can make these moments far less stressful.

What Is Reverse Sneezing?

A typical sneeze forces air out through the nose. A reverse sneeze does the opposite: air is rapidly pulled in through the nasal passages. Veterinarians refer to this as “inspiratory paroxysmal respiration” or the “mechanosensitive aspiration reflex.”

During a reverse sneeze, a dog suddenly begins making loud, rapid inhalations. The posture is distinctive: elbows spread, neck extended, back stiff, and eyes wide. Many owners think their dog is choking or unable to breathe, but the dog is actually experiencing a brief spasm of the soft palate or throat.

Episodes usually end with a snort, gag, or swallow, and the dog returns to normal immediately afterward.

What a Reverse Sneeze Looks and Sounds Like

Reverse sneezing can be hard to describe, so visual examples help.

VIDEO 1

A Greyhound demonstrates the classic posture and loud snorting sound associated with reverse sneezing.

VIDEO 2

A mixed‑breed dog shows a shorter, milder episode, illustrating how reverse sneezing can vary between dogs.

How Long Do Episodes Last?

Most reverse sneezing events last anywhere from a few seconds to about two minutes. While the noise and posture can be startling, the episodes themselves are not dangerous.

What Causes Reverse Sneezing in Dogs?

The exact cause isn’t always clear, but several triggers are known to contribute:

• Allergies (pollen, dust, mold)
• Nasal irritants (smoke, perfumes, aerosols)
• Sinus drainage or nasal inflammation
• Pharyngeal irritation
• Excitement or pulling on the leash
• Foreign material in the nasal cavity
• Nasal mites (less common but possible)

For most dogs, reverse sneezing is simply a benign reflex. However, frequent or worsening episodes may indicate an underlying issue that requires veterinary evaluation.

Breeds More Likely to Reverse Sneeze

Any dog can experience reverse sneezing, but it is especially common in:

• Beagles
• Terriers
• Small breeds
• Brachycephalic (short‑nosed) dogs such as Pugs, Bulldogs, Shih Tzus, Pekingese, and Lhasa Apsos

These breeds often have elongated soft palates or narrower nasal passages, making them more prone to airway spasms.

Treatment for Reverse Sneezing

Most of the time, no treatment is needed. If episodes become frequent or are accompanied by other symptoms, your veterinarian may recommend:

• Testing for nasal mites
• Allergy evaluation
• Nasal cavity examination with a small scope
• Imaging to rule out tumors or structural issues

Treatment depends on the underlying cause, if one is identified.

How to Stop a Reverse Sneezing Episode

There is no guaranteed method, but some techniques may help shorten an episode:

• Gently massage your dog’s throat
• Briefly cover the nostrils to encourage swallowing
• Offer a small treat or sip of water
• Calmly reassure your dog
• Move them away from irritants (smoke, candles, aerosols)

Some dogs with chronic episodes may benefit from medications prescribed by a veterinarian.

When to Worry

Reverse sneezing is usually harmless. However, seek veterinary care if episodes:

• Occur daily or multiple times a day
• Are accompanied by nasal discharge or nosebleeds
• Include coughing or difficulty breathing
• Occur alongside lethargy or decreased appetite
• Cause facial swelling or deformity

These signs may indicate infection, nasal tumors, foreign bodies, or other respiratory conditions.

Preventing Reverse Sneezing

While you can’t prevent every episode, reducing irritants can help:

• Avoid scented candles, air fresheners, and aerosols
• Keep your home smoke‑free
• Use HEPA filters and change furnace filters regularly
• Vacuum and dust frequently
• Wash your dog’s bedding often
• Use a harness instead of a collar to reduce throat pressure
• Clean your dog’s paws after outdoor walks during allergy season

Reverse sneezing in dogs can be startling, but it is typically harmless and short‑lived. Most dogs experience occasional episodes throughout their lives without any negative health effects. By identifying potential triggers and knowing when to seek veterinary help, you can keep your dog comfortable and safe. If your dog’s reverse sneezing becomes frequent or changes in character, take a video and consult your veterinarian for guidance.