Nasal phlegm, which should be a feeling of secretion attachment in the throat, is mostly caused by rhinitis and sinusitis. Patients can improve their living habits, cleaning the nasal cavity to improve, if other symptoms can be treated with medication. 1. Improve living habits: patients should pay attention to exercise, improve immunity, usually eat a light diet. Don’t go to places where people gather during the flu season, and at the same time, pay attention to indoor ventilation with open windows, and keep patients with a history of allergy away from allergens. Avoid inhaling second-hand smoke to reduce the irritation of smoke on the nasal cavity. 2. Nasal cleansing: For patients with large amounts of nasal secretions, saline can usually be used for local rinsing to keep the nasal cavity clean, which is conducive to improving the patient’s symptoms. 3. Drug treatment: according to the specific cause of the disease, nasal rinsing, application of glucocorticoid nasal spray and anti-infective drugs and so on. The use of drugs should pay attention to follow the doctor’s instructions, nasal secretion, should be timely medical treatment.