With the improvement of living conditions nowadays, the incidence of atopic dermatitis is increasing year by year. The disease manifests itself in three phases, the first phase is the infantile phase, the second phase is the childhood phase, and the third phase is the youth and adult phase. Infancy is the performance of infantile eczema; childhood is the elbow fossa, popliteal fossa, eyelids, face and neck, subacute eczema performance; adult stage generally onset at the age of 12 years or more, occurring mostly in the trunk, flexor side of the limbs, sometimes can also involve the palms of the hands and feet, similar to eczema, dermatitis performance. Although the manifestation of each period is different, but the itching is obvious. Itching is the primary manifestation of atopic dermatitis, especially aggravated at night, affecting the sleep of the affected children to varying degrees, affecting growth and development, as well as causing a series of problems at work and school, and even affecting the quality of family life.