Mucus in the throat may have pharyngeal inflammation, and chronic inflammation of the pharyngeal mucosa is more likely. With pharyngeal discomfort, dryness, foreign body sensation or mild pain, dry cough, nausea, pharyngeal congestion is dark red, the posterior wall of the pharynx can be seen lymphoid follicles, etc. as the main clinical manifestations. Chronic pharyngitis patients, due to increased pharyngeal secretions, so there is often clear noise action, spit white mucus. What are the methods of dietary prevention associated with it? 1, Codonopsis 15 grams, Poria, Atractylodes macrocephala, Fazha, Chen Pi 10 grams each, roasted licorice 3 grams. Dosage: water decoction, 1 dose per day, served twice, 20 days for a course of treatment 2, prescription Qingdai, calamus, gunpowder armor, safflower, kombucha, stiff silkworms, wilsonia, fine Xin 10 grams each, vinegar 1000 ml. Usage: Soak the medicine in vinegar for 30 minutes, then decoct for 20 minutes, remove the slag and take the liquid, put a little in the mouth and gargle every drink, 6 times a day. Therapeutic effect: 1-2 courses of medication, the effectiveness rate of 96.4% Chronic pharyngitis is a common disease for chronic infection caused by diffuse pharyngeal lesions, mainly pharyngeal mucosal inflammation. Mostly in adults, its main causes are repeated acute pharyngitis, long-term dust or harmful gas stimulation, excessive smoking and alcohol or other bad habits, sinusitis secretion stimulation, allergies or lowered body resistance.