Nose Clear, also known as physiologic seawater nasal care spray, is not a medicine, but can be used to clean the nasal passages, improve the internal environment of the nasal passages and relieve nasal symptoms. 1.Cleaning nasal cavity. The main ingredient of this product is physiological seawater, which can be used to clean the nasal cavity, promote the discharge of viruses and bacteria in the nasal cavity, and facilitate the recovery of the ciliary function of the nasal cavity. 2. Improve the environment of nasal cavity. The pH value of this product reaches the physiological standard, and the osmotic pressure is isotonic with the body fluids, which can adjust the pH of the nasal cavity, improve the internal environment of the nasal cavity, maintain the humidity of the internal environment, so as to repair the physiological function of the nasal mucosa. 3. Relieve nasal symptoms. Such as dry nose, nasal congestion, nasal odor, runny nose, etc. This product is rich in minerals and trace elements, which can effectively relieve the symptoms of nasal discomfort. This product can be used for cleaning the surface of nasal wounds and postoperative wounds, as well as general hygienic care of the nasal cavity. Adverse reactions have not been clarified. Note that the presence of large trauma in the nasal cavity, severe sodium chloride metabolism disorders, allergic reactions are prohibited.