A cold that lasts longer than a week may indicate inflammation of these airspaces in the skull
... tear 
ducts in the corner of the eyes, inflammation of these cavities often causes 
swelling... [DOC] [TLE] Sinusitis facts, information, pictures | Encyclopedia.com articles ... [PAR] Sinusitis is an inflammation of the sinuses, which are airspaces within the bones 
of the face.