Francis Yu, MD

Allergist & Immunologist

Dr. Francis Yu is an Allergist & Immunologist in Irvine, CA with special training and skill in diagnosing and treating conditions that affect the immune system. As an Allergist & Immunologist, Francis Yu, MD performs therapies to treat conditions like asthma, allergic reactions, and immune system disorders. Allergy & Immunology is concerned with addressing the causes and treating the symptoms of immune deficiencies and hypersensitivities. Significant diseases and conditions treated by Allergists & Immunologists include allergic conjunctivitis, gastroenteritis, eczema, immune deficiencies, organ transplants, asthma, and allergic reactions to pollen, mold, food, drugs, and insect stings. Medical tests, procedures and therapies provided by Allergists & Immunologists include allergy testing, allergy injection treatment, prescribing medication, and referring patients to other specialists as needed.

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.