Generally speaking, the use of saline nose wash, as long as the operation method is appropriate, will not cause any harm. The use of saline rinse nose, can play a role in assisting the treatment of rhinitis, can effectively rinse out the dirt inside the nose, so that the nasal cavity is more clean and hygienic, to promote the nasal mucosal cilia movement to enhance the resistance of the nose. However, it is not recommended that frequent rinsing, dilute, reduce the nasal mucus in the immune material, change the original protective effect, improper operation, can also cause nasal mucosal damage, causing a small amount of bleeding phenomenon. In the process of using saline rinsing, if there is an abnormality, pay attention to the hospital in time, under the guidance of the doctor for appropriate treatment.