If the solution doesn actually go into the sinus cavity, how can it help clear up or avoid a sinus infection?
The sinus and nasal cavities are connected by little holes. The sinuses drain through these holes into the nasal cavity and out the nose or into the throat. Nasal irrigation keeps these passages clear by removing debris which clogs them thus allowing normal drainage to occur and preventing congestion and infection. In addition, the saline solution thins and removes the thick, heavy mucous which is a breeding ground for bacteria while diluting the bacteria and washing it away.
