How do you know if you are allergic to something? What kinds of things are people allergic to? What happens when a person has an allergic reaction? This book examines a broad range of allergies, including hay fever, rhinitis, food allergies, skin allergies, and allergies to chemicals or insect stings. Read about the causes of allergies and the current medications available. Get the facts about what it is like to live with allergies every day.