Rhinosinusitis is increasing in prevalence and incidence, and has been estimated to affect approximately 31 million patients in the United States each year. This comprehensive reference offers recommendations for the optimal treatment of chronic rhinosinusitis and indicates pathways for new research in the field. Offering an interdisciplinary approach to the topic, edited by an allergist and an otolaryngologist, this source discusses advances in the understanding of the pathophysiology of the diseases, as well as important diagnostic tools for the assessment of chronic rhinosinusitis. It also summarizes published studies of chronic rhinosinusitis management for evidence-based medical care.