Where does a sneeze come from or what is it about?
We sneeze when our noses need to expel foreign objects (like dust) that become trapped in the nose hairs or in the mucus membrane. Just before a sneeze, you’ll notice that you’ll involuntarily take a deep breath, and that air you’ve just breathed in is then powerfully forced out through the nose. If you notice an odd smell when you sneeze, it could be caused by bacteria (if you’re sick at the time).