Question

we sneeze to expel foriegn particles why we sneeze when we have cold

Answer 1

Explanation:

Sneezing is triggered when the mucous membranes of the nose and throat are irritated. When a cold virus infects nasal cells, the body releases its own natural inflammatory mediators, such as histamine. When released, inflammatory mediators cause the blood vessels to dilate and leak, and the mucus glands secrete fluid.