In life, patients choose to use saline to rinse the nasal cavity, can effectively play a moisturizing effect, and can make the nasal cavity dirt and secretions completely removed, to avoid the dryness of the patient’s nasal mucosa, and saline is more economical, affordable, and convenient to carry. However, there are certain disadvantages to using saline to cleanse the nasal cavity, such as the patient is particularly likely to cause rupture and bleeding of the nasal mucosa when cleaning the nasal cavity, sometimes the patient is too forceful will lead to the formation of otitis media, ear pain is particularly obvious, serious will be accompanied by tympanic membrane congestion, tinnitus, hearing loss symptoms, when rinsing the patient must master the rinsing strength. Also pay attention to the concentration of saline, it is best to buy physiological sea saline in pharmacies, to avoid their own random configuration, especially easy to damage the nasal mucosa, resulting in inflammation of the nasal mucosa and even bleeding.