The treatment of sinusitis should be based on four aspects: eliminating the cause, ensuring smooth drainage of the sinus openings, controlling the infection and preventing complications. Depending on the extent of the lesion, different methods are chosen. In general, treatment can be divided into non-surgical and surgical therapies. Non-surgical treatment includes systemic treatment and local treatment. Systemic treatment focuses on eliminating the causes of the disease and is supplemented by strengthening physical fitness, enhancing nutrition, paying attention to rest, exercising, quitting smoking and alcohol, improving living and working environment, and removing systemic chronic diseases. If necessary, medication should be actively applied. Systemic antibiotic treatment is mostly used to treat acute sinusitis to prevent it from becoming chronic and to relieve acute attacks and complications of chronic sinusitis. If accompanied by allergies, you can also add some anti-allergy drugs. Local treatment 1, nasal medication: the most commonly used drug is 1% ephedrine saline nasal drops, it is inexpensive, widely used, can reduce the swelling of the mucous membrane of the sinuses, the opening is open, so that the pus in the sinuses flow out more easily. It should be noted that “nasal drops” is not currently advocated for long-term application, it can cause drug rhinitis, making the symptoms of nasal congestion worse or irreversible. If chronic sinusitis is accompanied by allergies and edema of the nasal mucosa is obvious, anti-allergic nasal spray can be applied and should be used under the guidance of a physician after systematic diagnosis. 2.Puncture rinse: mostly used to treat chronic maxillary sinusitis. 3.Positive and negative pressure replacement method: suitable for less symptomatic chronic whole group sinusitis, especially chronic sinusitis in children. Surgical therapy If the condition of adults does not improve after more than 8 weeks (12 weeks in children) of systematic treatment with non-surgical therapy or CT shows irreversible lesions in the nasal sinuses, surgical therapy is considered. Currently, functional nasal endoscopic nasal sinus surgery has become a trend in the treatment of chronic sinusitis. It is a minimally invasive surgery, performed in the nasal cavity, which changes the traditional destructive surgery of radical scraping of the mucous membrane in the sinus cavity in large part or completely to a functional surgery that preserves the normal mucous membrane and structures of the nasal cavity and sinuses as much as possible on the basis of complete removal of the lesions, forms good ventilation and drainage, and promotes the recovery of the morphology and physiological functions of the nasal cavity and sinuses according to the extent of the lesions.