Sinusitis often causes patients to develop symptoms such as runny nose, headache, and nasal blockage. Both chronic sinusitis and acute sinusitis can contribute to headaches. 1. Chronic sinusitis. Headaches in patients with chronic sinusitis are dull aches or a dull feeling in the head. The headache will appear during the day and less often at night. If the headache occurs both during the day and night, the headache will be heavier during the day than at night. Patients with this disease also have symptoms such as nasal congestion and loss of sense of smell. 2. Acute sinusitis. Compared to patients with chronic sinusitis, patients with acute sinusitis have much more violent headaches. Most patients have headaches in the frontal area, and some have headaches that spread to the top of the head. In most patients, the headache is worse in the afternoon and less severe in the morning. Some patients do not experience headaches. 3. Sinusitis is not the only thing that can induce headaches, but other diseases can as well. To confirm whether it is sinusitis, a nasal examination and postural drainage are required. When suffering from sinusitis, mucosal congestion, turbinate hypertrophy and other phenomena can be found through examination. 4. Prevention should be the main focus of any disease. Sinusitis is no exception. Sinusitis can be prevented by keeping warm, reducing colds, and exercising to improve the body’s immunity.