Living with Allergies Make an Appointment Ask a Question Find a Doctor When you have allergies, your immune system reacts to a foreign substance (an allergen) as if it were dangerous, even though it is harmless to others. A doctor uses clinical and family histories, physical examination, and skin and laboratory tests to diagnosis allergic disease and identify potential allergic triggers. Allergy symptoms can be successfully relieved through a combination of allergen avoidance, allergy medications and immunotherapy. The best way to manage allergies is to learn about your allergens and triggers, avoid allergens and take your medication appropriately. For example, if you have pollen allergies, learn when pollen season starts in your area and take allergy medications before allergy symptoms start. Featured Stories Allergy & Asthma Holiday Tips Allergy Medication: FAQ Animal Allergy: FAQ Nasal Wash Guide A nasal wash is a way to clean the nasal passages and sinus cavities. It's a simple procedure that most people, even children, can do easily. View Nasal Wash Infographic Nasal Wash Directions & Videos Allergy Treatment Programs No matter where you are on the allergy spectrum, get care from the international leader in allergy research and treatment, National Jewish Health. Learn more. Learn more about Adult Allergy and Pediatric Allergy View all Specialties & Conditions More Living with Allergies Tips Summer Allergy Tips Tricks for Beating Spring Allergies Shortness of Breath and Eating Steps to Get Ahead of the Spring Allergy Season Proper Hydration Protect Against Mosquito, Tick & Flea Bites When Harmless Molds Cause Allergic Reactions Spring Allergies Best and Worst Cities for Spring Allergies The Best & Worst Cities for Fall Allergies Healthy Recipes Annual Grass Walk Teaches National Jewish Health Allergy Fellows About Pollens What You Need to Know About Dust Mite Allergy How is Drug Allergy Different Than Drug Intolerance? 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