Atopic dermatitis is an inflammatory skin disease, which is divided into three phases, namely infancy, adolescence and adulthood. It should be clear from the course of the disease that its disease can last from birth to a lifetime. Therefore, how long it takes to cure atopic dermatitis varies from person to person. The general course of many pediatric patients with atopic dermatitis is that 80% of children around the age of 5 will be in complete remission. If not in remission may be delayed until adolescence or adulthood. But specifically for each recurrence of atopic dermatitis, the cure needs to be judged by the severity of the disease and the response to the medication. Generally it takes a minimum of about 2 weeks for acute symptom control and about 12 weeks or 3 months for active maintenance in the later stages. This is because topical glucocorticosteroids are often used during the acute phase to control the acute symptoms and to make the patient avoid scratching. After avoiding scratching, it takes about 1-2 weeks. If the symptoms are not controlled in about 2 weeks, the number of topical glucocorticosteroids should be reduced to once every other day or twice a week. At this time, it is necessary to use a combination of non-hormonal topical drugs, such as tacrolimus and pimecrolimus, which are commonly used in clinical practice. After control, the later 3 months time should be actively maintained called active maintenance therapy, which can reduce the total amount of medication. If 3 months later after complete control, at this time can stop using drugs, the later is long-term skin care especially containing moisturizing ingredients emollients should be applied for a long time, so as to achieve a good state of relief.