Non-invasive fungal sinusitis includes fungus ball and allergic fungal sinusitis, which should be treated medically, surgically, etc. according to their different types. 1. Fungal ball: Fungal ball can be cleaned up by sinus lesions, suggesting ventilation and drainage of the sinuses, preserving the sinus mucosa and bone wall. Surgical approaches mainly include traditional access surgery and transnasal endoscopic surgery. Surgery is often not accompanied by antifungal medication. 2. Allergic fungal sinusitis: its surgical treatment is the same as fungal ball. However, the postoperative period requires routine application of drugs for disease control. Commonly used drugs include oral prednisone and nasal glucocorticosteroids (e.g. budesonide, etc.). Meanwhile, patients should pay attention to nasal hygiene. Regular rest and regular sleep are also recommended. The use of specific drugs should be under the guidance of a doctor.