WHY DO SNEEZES RARELY COME ALONE?
A sneeze can travel at 160km/h – equivalent to a hurricane-force wind. This energy is needed to eject whatever foreign particles are causing the nose irritation – commonly dust and allergens like pollen or animal dander. If the number of particles is too large, then we may need to sneeze several times. That’s because when the sneezing reflex is triggered, the volume of air in the lungs and pharynx is compressed and the pressure required to expel them in one sneeze would be too high. You should avoid holding your nose when sneezing, as the pent-up pressure can escape into the middle ear and cause damage.