Frequent clinical use of saline to wash the nose can be effective in improving rhinitis symptoms. If you need to wash your nose at home, you can also use non-iodized table salt for a short period of time instead of preparing it, but it is recommended to use physiological saline as much as possible. There are generally two types of saline for rinsing the nose, isotonic concentration of 0.9% and hypertonic concentration of 3%. 0.9% concentration of physiological saline can be formulated by adding 9 grams of salt to 1000 ml of warm boiled water and 3% concentration by adding 3 grams of salt to 100 ml of warm boiled water. 0.9% physiological saline is suitable for long-term use and is adapted to anyone because it is isotonic with nasal cells and has a neutral pH, so long-term use will not Saline of 3% concentration is hypertonic, anti-inflammatory and quick to reduce swelling, and can effectively reduce or improve nasal congestion, but it should be used under the guidance of a doctor, and not for a long time, usually no more than 2 weeks. When washing the nose, pay attention to the temperature of the saline, generally 37 ℃ comfort is good, can effectively help the nasal cavity back to the normal physiological environment. If you use cold water, it will be irritating to the body and can lead to ineffective or poor results. After mixing the nasal wash solution should use a professional nasal wash tool, such as a pressure type nasal washer, which can rinse warm saline from one side of the nose into the nasal cavity as well as the sinuses, which can assist the nasal cilia to restore normal oscillation. Although saline nose wash is effective in relieving the symptoms of rhinitis, most of them are effective for a short period of time and cannot be completely treated. Patients should be treated with medication according to the type of rhinitis under the guidance of a physician.