Patient: Description of condition (main symptoms, onset time) headache for more than ten days, severe pain in the back of the head, sinusitis for thirty years, recently just found emphysema. Hospitalized in Sihong County Central Hospital for 4 or 5 days headache does not abate, CT scan is not abnormal Please ask whether it is a neurological headache Laboratory and examination results: Last hospital visit: Doctor: No abnormalities in head CT, can not say there is no sinusitis, need to do sinus CT. sinusitis can cause headache, sinusitis causes headache and has nasal polyps, need nasal endoscopic surgery.