First, actively prevent colds and flu, according to seasonal changes in time to increase and reduce clothing. Second, strengthen physical exercise, improve physical resistance, promote cold water washing, cold bath, sunbathing. Third, quit smoking and alcohol, defense of toxic gases and pollution, dust on the nose and throat long-term stimulation. Four, avoid long-term application of vasoconstrictors, such as nasal drip, ephedrine, etc., to avoid causing drug rhinitis. Five, do not develop the bad habit of picking the nose, nasal congestion is serious is not forced to blow the nose, so as not to cause sinusitis, otitis media, etc. Sixth, timely treatment of nasal, pharyngeal and surrounding organ diseases to avoid the spread of infection and recurrent attacks.