Maxillary sinusitis is generally called maxillary sinusitis and is caused by blockage of the sinus opening and bacterial infection blockage. Treatment is mainly focused on eradicating the cause of the disease, improving the ventilation of the nose, and promoting ventilation and drainage. It can be treated with medication, rinsing, or surgery as prescribed by the doctor. 1. Medication:If there is pus and runny nose, and if there is a serious infection, antibiotics such as Roxithromycin, Cefixime, Amoxicillin, etc. can be used under doctor’s supervision to control the infection. 2. Rinsing treatment: Rinsing treatment mainly involves nasal rinsing and maxillary sinus puncture rinsing, using a professional cleaner to clean the mucous secretions inside the nasal cavity. Saline, sea salt water and other solutions are often used. 3. Surgical treatment: After medication, the symptoms can not be relieved, then choose surgical treatment. The maxillary sinus opening is opened, and the secretions, polyps and some fungi inside the sinus cavity are completely cleaned out, while keeping the sinus opening open. Maxillary sinusitis patients, to use medication under the guidance of the doctor, do not take medication without authorization.