Diagnostic criteria for allergies

Diagnostic criteria for allergies involve a combination of medical history, symptom assessment, and testing. Doctors review symptoms like sneezing, itching, or swelling, and ask about exposure to potential allergens such as pollen, foods, or pets. They may perform skin tests, where tiny amounts of allergens are applied to the skin to see if a reaction occurs, or blood tests to measure allergy-specific antibodies called IgE. A positive response in these tests, along with relevant symptoms and exposure history, helps confirm an allergy. Proper diagnosis guides effective management and avoidance strategies to reduce allergic reactions.