To check IgE, you can go to the Department of Metabolic Reactions, Department of Rheumatology and Immunology, etc. If the hospital does not have these departments, you can also choose Dermatology, Respiratory Medicine, etc. according to the symptoms. IgE is a kind of immunoglobulin in the human body, which mainly produces allergic effects and mediates allergic reactions in the body, therefore, if IgE is elevated, you can choose the Department of Metabolic Reactions and the Department of Rheumatology and Immunology to consult the doctor. Increased IgE usually indicates that the body is infected with allergic diseases, such as allergic rhinitis, bronchial asthma, atopic dermatitis, etc. These diseases are often accompanied by symptoms such as itching, nasal congestion, coughing, etc., and according to the specific symptoms, such as dermatology, respiratory medicine and so on. If allergic symptoms occur, it is recommended to consult a doctor in a timely manner, IgE test to clarify the diagnosis, at the same time, allergen testing can be conducted to find allergens, and often follow the doctor’s instructions to take anti-allergy drugs, such as loratadine, etc., and if there are serious symptoms, it is recommended to carry out scientific and systematic treatment under the guidance of a physician.