Sinusitis can occur in all people, and those who are young, old, or weak are more likely to develop sinusitis. When a person experiences the following symptoms, it means that the person may be suffering from sinusitis. 1. Nose blockage. Patients with acute or chronic sinusitis have congestion of the mucous membrane inside the nose and increased secretions, which leads to blockage of one side of the nose and is difficult to relieve. If the nasal congestion is always bad, it may not be a common cold, but acute sinusitis or chronic sinusitis. 2, outflow of thicker nasal mucus. Acute sinusitis patients will flow thick nasal mucus, some patients will have blood in the nasal mucus. Some patients’ nasal mucus has an odor. Chronic sinusitis patients have yellow or yellow-green colored nasal mucus. In some patients, the nasal mucus flows backward into the throat. 3. Dizziness and headache. Certain patients with acute sinusitis will have a strong headache in the head, and the headache spreads to the top of the head in some patients. Chronic sinusitis patients headache is not as serious as acute patients, just have a mild headache, sometimes dizziness. If not treated consistently, acute sinusitis can turn into chronic sinusitis, which is much more difficult to treat. Therefore, when sinusitis is still acute, you must adhere to the doctor’s program of medication.