Do you have any allergies? The World Health Organization has listed allergic diseases as one of the three key diseases for research and prevention in the 21st century. Allergic reaction, also known as hypersensitivity reaction, is a reaction that occurs rapidly after exposure to allergens and affects a single system or the whole body of the human body. Allergic problems mainly arise from the immune system itself. If the immune system overreacts, it will mistake harmless things for antigens, eliminate them, and produce antibodies for attack, which can cause adverse reactions in the human body, namely allergies. Immune regulation and anti allergy treatment courses are formulated based on individual allergy conditions to control excessive immune reactions and achieve the function of treating various immune related diseases.