Allergology, Immunology

The study of allergy and hypersensitivity of the immune system is termed allergology, and thus an allergologist is a medical scientist who studies and practices within that associated field. As suggested above, immunologists also receive allergy training, and specialists in several other disciplines can also be involved in allergy management.
An allergy specialist, or allergist, is a doctor who is medically trained to manage and treat allergies and allergic diseases. Practitioners in this medical field often combine their allergy role with immunology, a broader discipline that also treats allergies. In the medical world, both of these topics are usually considered sub-fields of pediatrics or internal medicine.