There are a variety of sprays to keep the nasal passages moist in the clinic, the most commonly used being physiological sea saline, which is available in a variety of brands and can be applied selectively by patients. The main purpose of physiological sea saline is to reduce the patient’s nasal congestion symptoms by using physical hyper-osmosis. The spray is applied evenly over the surface of the patient’s nasal cavity to improve the patient’s nasal congestion and nasal dryness. Application of compound menthol nasal drops can also be considered, which is very effective for dry rhinitis and atrophic rhinitis. It is recommended to observe the changes in the patient’s condition after medication, and if necessary, still need to go to the hospital for further examination to avoid delaying the condition. It is recommended to keep the air humidity in the living environment in a moderate range.