Chronic rhinosinusitis is a common disease, because most of the accompanying rhinitis, so also called chronic rhinosinusitis, the current name is mostly used, its treatment is more confusing, the Chinese Medical Association of Otolaryngology Head and Neck Surgery Branch in order to standardize the treatment plan, issued a chronic rhinosinusitis diagnosis and treatment guidelines, involving the main content of treatment are: 1, drug treatment: (1) intranasal local glucocorticoid spray, the course of not less than 12 weeks; systemic glucocorticoid Corticosteroids: Only for severe, recurrent nasal polyps, oral prednisone (or prednisolone) can be administered for a course of 5-10 days, up to 14 days. Systemic or intranasal glucocorticoids are not recommended; (2) macrolides (such as erythromycin, etc.), which have anti-inflammatory effects, are recommended for long-term oral administration in small doses (1/2 of the conventional antibacterial dose) for a course of not less than 12 weeks; and penicillins, cephalosporins, sulfonamides, macrolides, fluoroquinolones, and other sensitive drugs for acute attacks of chronic rhinosinusitis, in conventional doses, for a course of not more than 2 weeks. (3) Decongestants (such as ephedrine) are not recommended, but can be used for a short time in severe nasal congestion; (4) Mucus promoters (such as myrtle oil) can thin mucus and improve cilia activity, and are recommended. (5) For patients with allergic reactions, the 2nd generation or new antihistamines can be taken orally. (6) Some herbal medicines are effective in improving the symptoms of chronic rhinosinusitis, and should be selected according to the principle of evidence-based treatment. 2.Surgical treatment: Indications: Chronic rhinosinusitis with one of the following conditions can be treated surgically. (1) Obvious anatomical abnormalities affecting the sinus-oral nasal tract complex or the drainage of each sinus (e.g. vesicular middle turbinate, deviated nasal septum, etc.). (2) Nasal polyps that affect the sinonasal complex or the drainage of each sinus. (3) Unsatisfactory improvement of symptoms with pharmacological treatment. (4) The presence of cranial and orbital complications. Perioperative management: Perioperative management is centered on surgery and in principle should include a series of medication strategies and treatment principles from 1 week before surgery to 3-6 months after surgery. The recommended treatment plan is as follows: (1) medication 1 week before surgery: routine application of antibacterial drugs, intranasal local and systemic glucocorticoids, mucus pro-discharge agents, etc. (2) Duration of local treatment after surgery: regular postoperative cavity cleaning and follow-up treatment interval for 3-6 months after 1-2 weeks according to the recovery of the operated cavity. (3) Post-surgical drug treatment is the same as the above principles of drug treatment for chronic rhinosinusitis, with anti-inflammatory response medication for not less than 12 weeks.