why do dogs reverse sneeze

Dogs reverse sneeze as a reflex to clear irritants from the back of their throat or nasal passages. This happens when something irritates the soft palate or the area near the throat, causing the muscles there to spasm and narrow the airway. As a result, the dog rapidly inhales air through the nose in a series of forceful, snorting-like breaths, which produces the characteristic reverse sneeze sound. Common triggers for reverse sneezing include allergies, dust, pollen, smoke, excitement, nasal mites, infections, or anatomical factors such as elongated soft palates or brachycephalic (short- nosed) breeds. While reverse sneezing can look alarming, it is generally harmless and self-resolving, though frequent or severe episodes should be evaluated by a veterinarian to rule out underlying health issues.