Chronic rhinosinusitis (CRS) - Paranasal, >12wk, 3 types +/- polyps & allergic.  Fever, pain, nasal discharge, hyposmia / anosmia.

Sinusitis (AKA Rhinosinusitus because they almost always together)

Location: Inflamm or paranasal sinuses and nasal mucosa

Aetiology: self limiting viral (rhinovirus, adenovirus, influenza/ parainfluenza virus), primary bacterial/fungal rare but in immunocompromised (strep pneumo, Haem infl., Moraxella)

Demographics: <15yo, 25-64yo

Risk Factors

• Impaired mucous transport (CF, ciliary dyskinesia)
• NG tubes
• Immunodef
• Anatomical defects

Clinical Features

At least 2 of: nasal blockage (congestion or obstruction), nasal discharge (anterior or posterior nasal drip), facial pain or pressure, reduction or loss of sense of smell.

< 4 weeks = acute

>12 weeks = chronic

Care for bacteria spreading: