Rhinology is the science of dealing with the nose and its diseases. Rhinology concerns itself with medical and surgical diseases of the nasal passages as well as paranasal sinuses. It is becoming more important after the introduction of nasal endoscopes. This is a subspecialty of ENT that deals with diseases of the nose and the sinuses including Rhinosinusitis (nose and sinus allergy), nasal obstruction, nasal polyps and nose bleeds. It also involves treating diseases close to the nose such as prominent eyes in thyroid disease, and watery eyes caused by blocked tear ducts in addition to excision of tumours (benign and malignant) in this area."