Now in its fifth edition, this incisive handbook provides clear explanations of the hypersensitivity mechanisms involved in allergic diseases and asthma. Based on the extensive clinical expertise of two acknowledged leaders in the allergy and asthma field, this handbook discusses in detail the new National Institutes of Health (NIH) guidelines for the treatment of asthma as well as how to accurately diagnose and treat allergy and asthma disorders, including recommended pharmacologic regimens.