The sneeze reflex is an automatic response that helps clear irritants from the nasal passages. When something like dust, pollen, or a strong smell irritates the lining of the nose, sensory nerves send signals to the brain. This triggers a series of actions, including taking a deep breath and forcefully expelling air through the nose and mouth. Sneezing is a protective mechanism that helps prevent infections and keeps the airways clear. It can occur due to various triggers, including allergies, colds, or even bright light. Understanding the sneeze reflex can help people manage their symptoms and maintain respiratory health.