An allergist is a medical doctor who specializes in diagnosing and treating allergies, asthma, and other related conditions. They help patients understand their allergic reactions to various substances, such as pollen, dust mites, pet dander, and certain foods. Allergists perform tests to identify specific allergens and develop personalized treatment plans. In addition to managing allergies, allergists also treat conditions like hay fever, eczema, and anaphylaxis. They may prescribe medications, recommend lifestyle changes, or provide immunotherapy, which involves gradually desensitizing patients to allergens. Their goal is to improve patients' quality of life by reducing allergy symptoms and preventing severe reactions.