Does anyone know?
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Hypertonic Solutions have a higher salt concentration that the cells of the body. a stuffy nose is the result of fluid buildup on the nose. The process of osmosis occurs and the water (fluid) moves from high concentration (the nose) to low concentration (the solution) until an equal balance of salt and water is reached. the movement of the fluid out of the cells causes the cells to shrink, thus relieving that stuff feeling in the nose. Hope this is helpful!