What is Sinusitis?

Sinusitis is the disease caused due to the infection of sinuses. Sinusitis is the swelling of inner lining of the sinuses.
Sinuses
Sinuses are air-filled cavities inside the bones of the face. These sinuses drain into the nasal cavity and block it. Blocked sinuses do not drain properly which causes pressure and pain.
Sinuses are the spaces between [...]

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