Sieve sinusitis is usually due to a bacterial infection in the nasal cavity that spreads to the sieve sinuses, and may cause systemic symptoms such as chills and fever; it may also cause local symptoms such as nasal congestion and pus flow. 1. Systemic symptoms: acute sieve sinusitis may appear chills, fever and other systemic symptoms, children may vomit, diarrhea and other symptoms; chronic sieve sinusitis may appear mental fatigue, memory loss and other symptoms, some patients are not obvious symptoms. 2. Local symptoms: the affected side will have the symptom of nasal congestion, when there is a large amount of secretion in the nasal cavity, there will be pus, and sometimes there will be blood, and there may also be headache, vision loss, blindness and other symptoms. It is recommended that the patient go to the hospital in time, and carry out the relevant treatment under the guidance of the physician.