The principles of treatment of contact dermatitis are general management, local treatment, systemic treatment and so on. The disease requires active search for allergens, detachment from contacts, and early symptomatic treatment under the guidance of doctors. 1. General treatment: search for allergens according to the allergic condition, disengage from the contact of allergens; for other contact dermatitis caused by other, such as irritants, toxic substances, rinse the skin as soon as possible to remove the residual contact material. Once symptoms appear, need to reduce local stimulation, avoid hot water scalding, etc.. 2. Local treatment: according to the situation of dermatitis, can be used externally with 3% boric acid solution cold wet compresses, such as the emergence of infection, the use of mupirocin and other antibiotics to control infection. 3. Systemic treatment: according to the specific conditions, choose antihistamines, such as loratadine, or glucocorticoids for treatment, if the combination of infection, need to cooperate with antibiotics, infection control. If the above symptoms occur, it is recommended to consult the hospital, and the above medications should be used in accordance with the doctor’s instructions.