To determine the fungal infection of the nasal cavity, clinically the main aspects are as follows: 1. medical history, the patient mostly has a history of antibiotic application or a history of diabetes, long-term anemia, leukemia and other related immune system diseases, long-term application of hormones and other immunosuppressive drugs. 2. symptoms, when the fungal infection, the patient mostly has a pus and blood nasal cavity, nasal non-ventilation, repeated runny nose and other symptoms, this The application of anti-inflammatory drug treatment and nasal irrigation treatment, the patient’s symptoms have not been reduced but may be aggravated. 3, clinically do the nose CT examination, can see the performance of fungal mass growth in the maxillary sinus or sinus, generally show more high-density calcified spots, some patients if the invasive fungal infection, can see the performance of bone destruction. 4, can do the fungal culture of nasal secretions, can Find clear fungal infection, some patients do sinus mucosa, nasal mucosa fungal pathology, can see the performance of fungal growth on the mucosal surface.