Allergic diseases have been on the rise in recent decades and are one of the most common diseases in the world. Allergic diseases have diverse manifestations in the human body, and different people can have different manifestations and symptoms, mainly the following manifestations: 1, allergic rhinitis: also known as allergic rhinitis, manifested as sneezing, runny nose, nasal congestion, nasal itching. 2, allergic asthma: there are recurrent episodes of wheezing, coughing, chest tightness, dyspnea and other symptoms. Huang Pingfang, Department of Otolaryngology, Zhejiang Provincial Hospital of Traditional Chinese Medicine 3, allergic dermatitis: including drug dermatitis, which can have erythema, papules, flushing, and in severe cases, blisters and vesicles. 4, urticaria: commonly known as wind masses or rubella masses, appear in batches of wind masses, erythema and papules of different sizes, can disappear within minutes to hours, itchy. 5, eczema: inflammatory skin manifestations with exudation, showing a variety of forms of rash, erythema, papules, papules, blisters, blisters broken vesicles, oozing, crusting. 6, allergic diarrhea: abdominal pain, diarrhea, often accompanied by urticaria. 7, allergic conjunctivitis: bulbar conjunctival edema, itchy eyes, tearing and other manifestations.