What is the physiological or medical principle of nose washing?

Washing the nasal cavity with a nasal lavage device has a great effect on relieving rhinitis. Nose washer is a tool for cleaning nasal cavity. It usually uses a certain pressure to send physiological saline into the nostril, flow through the nasal vestibule and nasal passage, bypass the nasopharynx, or be discharged from one nostril or from the oral cavity. Through the above path, diseases and dirt accumulated in the nasal cavity are discharged by the sterilization of physiological saline and the impact of water flow, thus protecting the nasal cavity.

We know that nasal cavity is used more frequently than oral cavity, because people need to breathe all the time. Because the environment around us is not pure. These impurities and harmful substances are blocked in the nasal cavity by the filtering function of the nasal cavity after being inhaled into the human body, so that they cannot enter the lungs, but these impurities and harmful substances may cause nasal lesions such as rhinitis. Therefore, it is necessary to regularly remove harmful substances in the nasal cavity, so that the nasal cavity will always have a clean environment. At present, there are many kinds of nasal lavage devices, and their use methods and applicable people are also different. The brands of nasal lavage mainly include Jiebikang, Le Yi and Shanbi.