Patients with sinusitis may have recurrent fever because there is a lot of pus formation inside the sinuses during the acute phase of inflammation, and there may be anaerobic bacterial infections inside, as well as combined bacterial infections, so patients will have recurrent fever. Patients must actively apply anti-inflammatory antibiotics to suppress the condition and avoid the spread of inflammation involving other organs, bringing discomfort. The commonly used clinical solution is cefoperazone sodium injection, which needs to be skin tested before use to avoid allergic reactions. Patients also need to cooperate with oral chenault to promote the drainage of secretions inside the sinus cavity to the outside, and at the same time can be combined with metronidazole tablets anti-anaerobic bacteria. If the patient continues to have recurrent fever after active treatment, further consultation at the hospital is required.