The cause of sinusitis is largely due to poor sinus drainage, so sinusitis sinuses are generally difficult to open themselves. 1. Sinusitis is a mild condition, the main consideration of the sinus mouth mucosal swelling, the patient’s clinical discomfort symptoms will be mild. You can use drugs under the guidance of the doctor first conservative treatment, such as budesonide nasal spray, eucalyptus-pinocampus enteric capsule and so on. If there is obvious purulent secretion, antibiotics can be used as appropriate. 2. In more severe cases of sinusitis, the sinus complex may have been completely blocked, which may be related to severe deviation of the nasal septum, vesicular middle turbinate, nasal polyps and other conditions. It is recommended to improve nasal endoscopy, sinus CT and other related examinations, if the drug treatment is ineffective, if necessary, need to be treated by surgery. 3. Nasal cavity tumor lesions can also cause sinus opening blockage, early clinical manifestations are also nasal congestion, pus and nasal discharge. In this case, surgical treatment combined with radiotherapy is needed. If you suffer from sinusitis, it is recommended to go to the hospital as soon as possible, to clarify the cause, for treatment.