Alternate nasal congestion at night may be a normal physiological phenomenon, or it may be caused by chronic simple rhinitis, patients need to follow the doctor’s instructions for medication, general measures, etc., and if necessary, also need to carry out surgical treatment. 1. Physiological phenomenon: usually in daily life, part of the population in the night time during the sleep may appear alternating nasal congestion symptoms, belong to the normal physiological response, no need to take special treatment. 2. Chronic simple rhinitis: nasal congestion symptoms of different degrees of severity, intermittent or persistent, unilateral, bilateral or bilateral alternation, performance varies. (1) Active treatment of systemic diseases; correction of nasal deformity, such as nasal septum deviation, structural rhinitis. (2) Topical application of mometasone furoate, budesonide and other glucocorticoid nasal spray treatment. (3) Decongestants such as furosemide nasal drops and hydroxymetazoline can be applied for a short period of time for treatment. (4) Saline nasal rinsing, etc. If there is alternating nasal congestion at night sleep should actively seek medical treatment, after the specialist doctor systematic examination to clarify the diagnosis, standardize the use of drugs and treatment.