Physiologic seawater rinsing is generally not harmful if done correctly, in accordance with the indications, and with normal rinsing. If the operation is wrong, does not meet the indications, and rinses too many times, it may lead to nasal mucous membrane damage, otitis media, and aspiration and other hazards.
1. Nasal mucous membrane damage: the use of nasal washer is not the right way, nasal washer into too deep or too much force, may cause nasal mucous membrane damage, resulting in nasal mucous membrane bleeding, breakage, can be accompanied by infection when the nasal cavity appears mild erosion.
2. Otitis media: If the patient uses physiological seawater to wash the nose, the excessive force will flush the excess physiological seawater into the Eustachian tube or nasopharynx, and the secretion in the nasal cavity will enter into the middle ear cavity through the Eustachian tube to induce the infection, and even lead to otitis media.
3. Mis-absorption: The amount of physiological seawater in nasal wash is large, which may be inhaled into the pharynx, larynx and trachea by mistake, causing choking or pneumonia.
Physiological seawater nasal wash needs to follow the doctor’s instructions to use the correct operation method to avoid causing harm.