Chronic dermatitis is generally difficult to be completely cured, patients can improve their condition through general treatment, medication, physical therapy and other ways. 1. General treatment: patients should pay attention to appropriate rest, avoid exertion, keep the skin clean, avoid contact with allergenic substances or undesirable stimulating substances, pay attention to skin protection, do not scratch the affected area, so as not to cause infection and so on. 2. Drug therapy: patients can use glucocorticoid drugs, such as prednisone, hydrocortisone, etc.; antihistamines, such as loratadine, etc.; calcineurin inhibitors, such as tacrolimus, pimecrolimus, etc. for treatment, but also can be used topical boric acid solution, glycerine lotion, etc. for local treatment, in order to improve the condition. 3. Physical therapy: chronic dermatitis patients can also be through ultraviolet radiation, infrared, ultra-short wave, intense pulsed light and other ways to carry out physical therapy, alleviate the symptoms and so on. It is recommended that patients strictly follow the doctor’s instructions to use medication, do not change the dose of drugs or abuse drugs without authorization, pay attention to monitoring the condition in life, regular review.