The most common immunological disorder in humans, rhinitis has a marked effect on quality of life and significant co-morbid associations, including asthma. Successfully diagnosing and treating nasal disorders is often problematic, yet is a necessary skill not only for ENT surgeons, but also for chest physicians, allergists, paediatricians and general practitioners. Written by internationally respected experts, Investigative Rhinology supplies the information necessary to make a precise diagnosis in order to provide effective treatment. The book covers medical history taking, examination of the patient, and tests, including skin prick testing, radiology, cytology, airways measurements, nasal challenge, smell tests, quality of life questionnaires, and nitric oxide estimation. Each chapter is extensively illustrated and an appendix contains useful documents such as history proformas, charts of predicted peak flow based on age and height and advice leaflets that can be photocopied for use in the clinic. Rhinology is a complex topic encompassing basic anatomy, physiology, and all aspects of sinonasal inflammation, infection, and neoplasia. This work is a unique and important resource not only because of the comprehensive and up-to-date information it provides, but because it draws on the knowledge and expertise of pioneers at a center of excellence, the Royal National Throat, Nose and Ear Hospital in London.