Nasal discharge to the throat, often referred to as postnasal drip syndrome, is mostly related to rhinitis, sinusitis, nasal polyps and other diseases, and can be treated according to the different causes and symptoms of general treatment, drug treatment, surgical treatment and so on. 1. Rhinitis: mainly including acute rhinitis, chronic simple rhinitis and allergic rhinitis. (1) Acute rhinitis: when bacterial or viral infection occurs, oral cefaclor, ribavirin and other antibiotics can be given, and ephedrine nasal drops can be used locally for a short period of time to reduce nasal congestion and secretion. (2) Chronic simple rhinitis: saline can be used to regulate the rinsing of the nasal cavity, and adhere to the use of nasal budesonide, mometasone furoate nasal spray and other treatments. (3) Allergic rhinitis: allergens should be identified, good protection, as soon as possible to stay away from allergens, go out and wear a mask. If necessary, oral cetirizine, loratadine anti-allergy treatment. 2. Sinusitis: it is a disease formed by inflammation in the mucous membrane tissue of the sinuses. In the acute stage, fluticasone propionate nasal spray or oral dexamethasone should be given to the nose as soon as possible for treatment; for chronic cases where the effect of conservative treatment is unsatisfactory, endoscopic sinus surgery can be considered to remove the lesions in the sinuses, and to promote drainage and functional recovery. 3. Nasal polyps: an extreme inflammatory edema and hyperplastic lesion occurring in the nose, once diagnosed, you can choose to standardize the glucocorticoid nasal spray local application or surgical removal of polyps. If the nasal mucus backflow to the pharynx may also be other reasons, you need to consult a systematic examination in a timely manner to clarify the diagnosis, follow the doctor’s instructions to standardize the use of medication and treatment.