Open mouth sleep generally no so-called small method to solve, open mouth sleep is usually due to various reasons caused by the nasal cavity or pharyngeal cavity, patients can try to sleep in a side-lying position to reduce the nasal or pharyngeal cavity blockage of the airway to alleviate the symptoms of open mouth sleep. Patients whose symptoms cannot be improved by sleeping in the lateral position can consider going to the hospital to identify the cause and treat accordingly: 1, cold: patients will have nasal congestion symptoms during the cold, the open mouth sleep caused by this time generally does not require special treatment, to gradually improve the cold, nasal congestion is relieved, the symptoms of open mouth sleep will be eliminated; 2, nasal lesions: rhinitis, sinusitis attack caused by open mouth sleep patients can follow the instructions to use Ephedrine, budesonide nasal spray to relieve the symptoms of inflammation, improve the nasal inaccessibility, and promote open-mouth sleeping symptoms subside. Patients with nasal polyps, turbinate hypertrophy, nasal septum deviation and other organic nasal lesions can consider surgery to improve the nasal structure and promote the elimination of symptoms; 3, pharyngeal lesions: tonsils, pendulous, soft palate and other hypertrophic patients will also have symptoms of open mouth sleep, and some patients may even have complete airway obstruction and cause apnea syndrome. Patients with the above-mentioned lesions should go to the hospital to adjust the pharyngeal structure in time to avoid serious complications such as cardiovascular disease and cognitive impairment at a later stage.