Inflammation of maxillary sinus may be caused by decreased resistance, sieve sinus infection, nasal allergic reaction and other factors, you can enhance immunity drugs, anti-infective drugs, antihistamines for anti-inflammatory treatment. 1. Decreased resistance: when the patient in the work life of the pressure is relatively large, poor diet, upper respiratory tract infection and other circumstances may appear resistance to decline, which may lead to inflammation of the maxillary sinus, you can take oral immune enhancement drugs, such as transfer factor oral solution, to enhance immunity, to alleviate the symptoms of inflammation of the maxillary sinus. 2. Sieve sinus infection: Sieve sinus infection is a bacterial infection of the mucous membrane in the sinus, the pus secretion of sieve sinus infection flows into the maxillary sinus through the middle nasal passage, which may cause inflammation of the maxillary sinus. Patients can take anti-infective drugs to reduce inflammation and relieve symptoms, such as clarithromycin and roxithromycin. 3. Nasal metamorphosis: due to maxillary sinus mucosal edema, may lead to the sinus mouth ventilation and drainage is not smooth, and inflammation leads to inflammation of the maxillary sinus. Patients can take antihistamines, such as loratadine, cetirizine and other anti-inflammatory symptoms. Patients with inflammation of the maxillary sinus are advised to consult a doctor in time to find out the cause of the disease, and take medication and treatment under the guidance of the doctor, do not take medication privately to avoid aggravating the condition.