Eczema is a chronic, inflammatory and itchy skin disease. Its skin lesions are polymorphic, symmetrical, exudative, and accompanied by obvious itching. Patients often have allergic rhinitis, asthma and other allergic diseases, and there are also patients with similar allergic diseases in their families. Clinically, eczema can be divided into acute, subacute and chronic eczema according to the course of disease. In the acute stage, the skin lesions showed erythema, edema, papules, papules, blisters, erosion and exudation; In the subacute stage, the symptoms are redness, swelling, decreased exudation, and crusting or desquamation on the erosive surface; In the chronic phase, the main manifestations are hypertrophic skin lesions, coarse dryness and lichenoid changes. Because eczema is easy to recur, accompanied by itching, it will seriously affect the quality of life of patients.
