Nasal polyp (NSP) affects the sinuses. Clinical examination of the nose, possibly using an endoscope. Generally shows bilateral congested polyps.
It may cause complete or partial obstruction of the nostrils, with loss of smell and taste and violent headaches. It is at significant risk of becoming superinfected. The condition affects approximately 1.5% of the population and is considered to be very incapacitating.
NSP is treated using corticosteroids or histamine antagonists. Surgery is also possible.