Understanding What Causes Reverse Sneezing in Dogs
Reverse sneezing can be an alarming sight for dog owners. Your dog suddenly stops, extends its neck, and makes a loud snorting or honking sound while rapidly inhaling air through its nose. Although it may look distressing, most episodes are brief and harmless. Let's dive into what triggers this unusual behavior and how you can help your canine companion.
What Is Reverse Sneezing?
Unlike a typical sneeze—where air is forcefully expelled from the nose—reverse sneezing involves a series of strong inward breaths. This reflex is also called paroxysmal respiration. Episodes usually last between 10 and 60 seconds, with the dog returning to normal almost immediately afterward. While all breeds and ages can experience reverse sneezing, small breeds and brachycephalic (flat-faced) dogs seem more prone to it.
Main Causes and Triggers
The underlying cause of reverse sneezing is irritation or inflammation in the nasal passages, throat, or around the soft palate. Several factors can trigger these episodes:
- Allergens: Dust, pollen, mold spores, grass particles, or mites can irritate sensitive nasal tissues.
- Airborne irritants: Cleaning products, perfumes, air fresheners—anything with a strong scent may provoke a reaction.
- Foreign objects: Tiny particles like grass blades or seeds sometimes get lodged in the nasal passages.
- Nasal mites or parasites: These microscopic invaders can cause persistent irritation.
- Upper respiratory infections: Bacterial or viral infections inflame the nasal lining.
- Overexcitement or exercise: Rapid breathing during play can trigger an episode.
- Eating or drinking quickly: Dogs that gulp food or water may stimulate their soft palate area.
- Pulled leash/collar pressure: Pressure on the throat from collars (especially when pulling) can induce reverse sneezing.
- Anatomical issues: An elongated soft palate (common in flat-faced breeds), polyps, tumors, or pharyngeal collapse are rare but possible causes.
The condition is generally benign; however, if you notice frequent or severe episodes—or additional symptoms like coughing, nasal discharge, lethargy—it's time to consult your veterinarian for further evaluation.
Recognizing Reverse Sneezing
A typical episode looks dramatic but is usually not dangerous. Signs include:
- Loud snorting/honking sounds
- Rapid and deep inhalations through the nose
- Mouth closed with flared nostrils
- Neck extended forward; elbows often splayed out
- Buldging or watery eyes; anxious expression
This presentation often leads owners to mistake reverse sneezing for choking or respiratory distress. Most dogs recover quickly and act normal before and after an episode.
The Diagnostic Process
Your veterinarian will typically diagnose reverse sneezing based on your description of the event (or a video recording). They may ask about recent exposures to dust, new cleaning products, changes in environment, eating habits, and other relevant details. If necessary—especially if symptoms are persistent—your vet might recommend diagnostic tests such as:
- A thorough physical examination
- X-rays to check for anatomical abnormalities
- Nasal endoscopy (rhinoscopy) to look for foreign bodies/structural issues
- Bacterial/viral testing for infections
- Nasal parasite screening
An observational study of thirty dogs found most affected were small breeds; inflammatory airway diseases were common findings among those with persistent symptoms. Structural disorders and foreign bodies like plant material were less frequent but notable causes.
Treatment & Management Strategies
The good news: most cases don't require treatment! For occasional episodes:
- Stay calm; your dog senses your anxiety which may prolong the episode.
- Gently massage your dog's throat; this sometimes helps end the spasm sooner.
- Cautiously cover one nostril for a second; this encourages swallowing which may clear irritants.
- Offer water; drinking helps wash away any potential trigger stuck in the throat/nose.
- If excitement triggers episodes: move your dog to a quiet area until they settle down.
If episodes are frequent/severe—or linked to an identifiable medical problem—treatment options include:
- Avoiding known environmental allergens/irritants whenever possible
- Certain medications prescribed by your vet: antihistamines (for allergies), antiparasitics (for nasal mites), corticosteroids (for inflammation)
- Treating underlying infections/anatomical problems as indicated by diagnostic tests
- Surgery for rare structural obstructions such as polyps/tumors/elongated soft palate
- Switching from collar to harness during walks to reduce throat pressure/irritation
The Prognosis for Dogs With Reverse Sneezing
The outlook is overwhelmingly positive. Most dogs have only occasional episodes and remain healthy otherwise. Many cases are idiopathic—that means no specific cause is identified despite thorough investigation. Chronic/worsening symptoms should always prompt further veterinary assessment just to be safe; conditions like persistent infection/allergy/nasal parasites do need targeted intervention.
A Quick Recap: Key Points About Reverse Sneezing Causes in Dogs
- Irritation/inflammation of nasal passages/throat/soft palate triggers reflexive rapid inhalation (reverse sneeze).
- Main culprits include dust/pollen/allergens/irritants/foreign bodies/infections/anatomical quirks/excitement/eating too fast/leash pressure on neck.
- Episodic events rarely require treatment unless severe/frequent/persistent—with proper management most dogs live happy lives without complications!





