Children’s allergies are generally tissue damage or physiological dysfunction caused by contact with allergenic substances (such as dust, food, drugs, pollen, parasites, etc.) stimulation, and common diseases include allergic dermatitis (such as eczema reaction, hives, etc.), allergic rhinitis, allergic asthma and other diseases. Allergic diseases generally symptoms progress rapidly, the performance of symptoms for the whole body, but the symptoms vary in severity, mostly manifested as skin damage, such as skin erythema, rash, itching, etc. such as allergic rashes, hives and so on. The respiratory system can be seen in the oral cavity, pharynx or larynx edema, dry cough, the condition of mild performance hoarseness, throat discomfort, the condition of severe can lead to life-threatening diseases such as asthma, etc.; In addition, the gastrointestinal tract can be seen in the early manifestations of abdominal pain such as abdominal allergic violet, etc., in addition to seizures during the attack can be seen anxiety, convulsions, fatigue and weakness and other neurological symptoms. Therefore, the condition of the milder quickly away from the allergen to avoid re-exposure to amplify the hypersensitivity reaction, generally can be taken orally to deal with the symptomatic treatment of anti-allergy drugs, common loratadine or cetirizine, etc. ((Specific use of medication, please combine with the clinic, in order to the doctor’s guidance shall prevail in the face-to-face visit). Serious patients need to consult the hospital for rescue treatment such as hormone anti-allergy intravenous infusion treatment. In conclusion, there are many kinds of allergic diseases, and the serious ones can be life-threatening. If you have a history of similar diseases, it is recommended that you have allergens measured, avoid contact with allergens, avoid seizures, and consult a doctor in time if there is any abnormality.