Chronic sinusitis often occurs in the maxillary sinus area, in addition to the sieve sinus, frontal sinus, and pterygoid sinus area. This disease may cause symptoms such as nasal congestion and headache, which need to go to the hospital for regular treatment. There are four pairs of sinuses, respectively, sieve sinus, frontal sinus, pterygoid sinus, maxillary sinus, which is located in the central position of the maxillary body, close to the outer wall of the nasal cavity, and opening in the middle nasal passages and nasal passages are connected to the nasal cavity, once suffering from colds, rhinitis and other diseases, nasal secretions in the collection of inflammation will easily be induced by the chronic rhinosinusitis. Chronic sinusitis often occurs in the maxillary sinus, but also may be involved in the sieve sinus, frontal sinus, pterygoid sinus and other parts of the clinic to varying degrees of thick phlegm, nasal congestion, headache as the main features, there may also be a sense of smell loss and other symptoms. Clinical endoscopy is generally used to determine the location of the lesion and small lesions, and if the diagnosis cannot be confirmed, further sinus CT is required. once diagnosed, if not treated in time, laryngitis, bronchitis, periorbital cellulitis and other complications may be triggered, so it is necessary to follow the guidance of a professional doctor and treat it as soon as possible.