The sudden onset of frequent sneezing can be caused by various factors. Common reasons include irritants in the air such as dust, smoke, strong odors, or chemical fumes that stimulate the nasal nerves as a protective response. Sudden temperature changes, like moving from a warm place to cold air, can also trigger sneezing. Allergies to pollen, pet dander, mold, or dust mites often cause sneezing fits. Additionally, viral infections like the common cold or flu can irritate the nasal lining and lead to sneezing. Non-allergic rhinitis, caused by irritants, weather changes, certain foods, medications, or hormonal changes, can also be a cause. Sometimes sneezing may be triggered by specific reflexes like the photic sneeze reflex (triggered by bright light) or even from a full stomach after eating (snatiation reflex).
Therefore, if sneezing started suddenly and is persistent, it is likely due to an irritant or an allergic reaction, a viral infection, or a non-allergic sensitivity triggered by environmental or physiological factors. If symptoms persist or are severe, consulting a healthcare provider is advisable for proper diagnosis and treatment.
