While hay fever—also known as allergic rhinitis—can cause seasonal or even year-round misery, allergy sufferers have reason for optimism. This program presents case studies that show how physicians diagnose allergies and determine the best treatment for them. Highlighting a diagnosis method in which doctors inject chemical triggers into a patient’s skin and examine the reactions, the program explains the importance of an accurate diagnosis and how genetic factors come into play. The choice between oral medication and immunotherapy shots is also discussed. Expert commentary is provided by prominent allergists, including Dr. Eli Meltzer of UC San Diego and Dr. Gary Rachelefsky of UCLA. (27 minutes)