Types of sinusitis
Sinus infection occurs in two types:
Acute sinusitis gives rise to severe symptoms but is usually short-lived. Acute sinusitis usually occurs following a cold. Typically a green-yellow nasal discharge occurs a week or more after the onset of the cold and this is associated with severe pain around the cheeks, eyes and/or forehead. This may be associated with swelling and a high fever along with toothache.
Chronic sinusitis is sinusitis that continues for many weeks. Chronic sinusitis may be caused by an acute sinus infection which fails to resolve or as a result of an underlying allergy affecting the lining membranes of the nose and sinuses. Common symptoms include nasal obstruction, headache, nasal discharge, low grade fever, reduced sense of smell, facial pain and halitosis.