Maxillary sinusitis is mainly caused by bacterial, viral and other pathogenic infections and allergies, and can be categorized into acute maxillary sinusitis and chronic maxillary sinusitis, which often manifests as nasal congestion, runny nose, olfactory disorders, headache, mental depression and other symptoms. It can be treated mainly by medication, maxillary sinus puncture and rinse, nasal rinse and surgery. 1. Medication: mainly mometasone furoate, budesonide, ephedrine hydrochloride nasal drops and other drugs can be used to help reduce the swelling and inflammation of the nasal mucosa. For patients with allergic rhinitis and asthma, drugs such as loratadine and montelukast sodium can be used. 2. Maxillary sinus puncture irrigation: it should be carried out after the systemic symptoms subside and the local inflammation is basically controlled, and it should be irrigated once a week until there is no pus to be irrigated out. Antibiotics, tinidazole or metronidazole solution may be injected into the sinus after each rinse to fight infection. 3. Nasal rinsing: Saline and other rinsing solutions can be used to help clear nasal secretions by rinsing the nasal passages with a special nasal rinse. 4. Surgery: When medication is ineffective or symptoms are severe, endoscopic sinus surgery is the main treatment, which can relieve symptoms and help inflammation subside. It is recommended that patients seek timely medical treatment, and the doctor will provide targeted treatment according to the specific conditions. The use of medication should be in accordance with the doctor’s instructions, if there is any discomfort after the use of medication, should consult a doctor in a timely manner. Daily attention to rest, diet should be nutritionally balanced, more exercise, enhance physical fitness, prevent colds.