When chronic rhinitis and sinusitis cause a lot of nasal secretions, it is beneficial to wash the nose, but normal people do not need to wash their nose every day. As a result of daily breathing, airborne particles, bacteria, dust are gathered and mixed in the nasal cavity and nasal mucosa, and nasal washing is to rinse out the secretions in the nasal cavity. However, normal people do not need to wash their noses every day, the nasal cavity has a self-cleaning function and also maintains physiological and immune balance. For patients who have rhinitis and sinusitis, rinsing the nasal cavity with warm physiological saline for a short period of time can locally clean up nasal secretions, reduce the local edema of the mucous membrane, and promote the recovery of the cilia function of the nasal mucous membrane. However, washing the nose is only as an auxiliary means of treatment, and can not be used as the main means of treatment. Nose washing process, if there is an adverse reaction, should go to the hospital in a timely manner, to identify the cause of the disease, under the guidance of the doctor’s treatment.