The cause of itchy skin needs to be clarified: 1. If the itchy skin is caused by allergies, such as urticaria, the allergens need to be removed and antihistamines need to be given orally, such as dicloretin, which can take effect after half an hour of oral intake. 2. If the allergy symptoms are heavy and the rash is widespread, dexamethasone can be given intramuscularly, and topical medications need to be given to stop the itching with glyburide lotion, avoiding hot and cold stimulation, otherwise the rash will recur. 3, if eczema can be given local topical glucocorticoid cream, pay attention to try not to use in the face and vulvar mucous membrane parts, twice a day can be used externally. 4, if there is exudation need to use external boric acid solution for wet compresses, if scabies due to scabies infection, with infectious, can be treated with external sulfur cream, while intimate clothing and bedding need to be placed after half a month Wash clean.