Eczema is an inflammatory skin reaction with a pronounced tendency to exude caused by a variety of internal and external factors. The rash is polymorphic, while the chronic phase is confined with infiltration and hypertrophy, itching is intense and prone to recurrence. The disease corresponds to the national standard of Chinese medicine disease name of wet sores. It is believed that the disease develops due to endowment intolerance, wind, dampness and heat evil blocking the skin. Damp-heat evidence (acute) Main evidence: rapid onset and short duration of illness. The lesions are widespread, with erythema, papules, papules, blisters, vesicles, oozing and other polymorphic lesions appearing one after another, with heavy itching. It is accompanied by burning. It is often accompanied by thirst, irritability, yellow urine and dry stools. The tongue is red, the coating is yellow and greasy, and the pulse is slippery. Analysis of the symptoms: The evidence belongs to the endowment of intolerance, wind, dampness, heat evil obstructing the skin, dampness and heat, fumigating the skin and causing erythema, papules, papules, blisters; dampness and heat contained in the fire toxin burning the skin and erosion, oozing; dampness and heat and qi and blood fighting knot then itching; heat disturbing the heart and mind then disturbed the heart; heat and injure the fluid so thirst, urine yellow, dry stool. The red tongue, yellow greasy coating, and slippery pulse are signs of damp-heat. Spleen deficiency evidence (subacute) Main symptoms: slightly longer duration of disease. Itching, mainly papular rash or papular herpes, with dull skin color or scaling and little exudation. With little food, fatigue, abdominal distension, loose stools, clear and long or slightly yellow urine. The tongue is light and fat, with thin white or greasy coating and moist pulse. Analysis of the symptoms: The evidence is due to spleen deficiency and dampness, which infiltrates the skin and causes erythema, papules and herpes; loss of spleen health is associated with less food, abdominal distension and loose stools; deficiency of qi and blood, loss of nourishment of the limbs and therefore fatigue. Pale fat tongue, thin white or greasy coating, and moist pulse are signs of spleen deficiency and dampness. Blood deficiency (chronic): itching, dry, rough, thick, mossy lesions. With scratch marks, flaking, and occasional red papules. With pale face and dizziness. The tongue is pale and the pulse is thin. Analysis of the symptoms: The evidence belongs to the disease long injury to blood, blood deficiency produces wind and dryness, the skin is not moistened and the lesions are dry, rough, thick, mossy, itchy; blood deficiency can not be glorified on the head and face, so the face is pale; blood deficiency brain marrow loss of nourishment, the eyes are not nourished, so dizziness and dizziness. Pale tongue and thin pulse are signs of blood deficiency.