Acute eczema can show erythema, papules, papules, there may be a tendency to ooze, the chronic phase of eczema will also appear mossy changes, easy to recur. Eczema is an inflammation of the superficial dermis and epidermis caused by complex internal and external factors, which can be triggered by chronic cholecystitis, tonsillitis, intestinal parasitosis, etc., and can be triggered by food, such as fish, shrimp, beef and mutton, etc.; inhalants, such as pollen, house dust mites, etc.; and the living environment, such as heat and dryness, etc. Acute eczema usually occurs on the face, hands and feet. Acute eczema usually occurs in the face, hands, feet, calves and other exposed areas, often manifested as erythema, as well as pinpoint to corn size papules, papules, for the more serious symptoms of the crowd can appear small blisters, or even fusion into a piece, patients often scratching due to itching to form punctate vesicles, accompanied by obvious plasma exudate. In severe cases, pustules and scabs may form as a result of secondary infection. Chronic eczema occurs in the hands, feet, breasts, vulva, anus and other places, its performance is different from the acute, at this time the skin is often because of the infiltration of the dark red spots accompanied by pimples, scratches and scales, the patient can appear local skin thickening, surface roughness, and accompanied by varying degrees of erythroplasia and hyperpigmentation or hypopigmentation. Therefore, the manifestation of eczema is more complex, must consult a doctor in a timely manner, under the guidance of the doctor to follow the instructions of the medication.