Eczema and dry eczema can be differentiated by the prevalence of people and seasons, the occurrence of parts, lesions and symptoms. 1. Prevalence of people and seasons: eczema has a wide range of people, regardless of age and season, while dry eczema is mostly seen in the elderly over 60 years old or ichthyosis patients, and occurs in cold, dry climatic conditions, such as winter. 2. Prevalent parts: eczema occurs in the head, face, hands, feet, distal exposed parts of the limbs and anus, pubic area, etc., while dry eczema occurs in the anterior side of the calf, can also occur in the hands, thighs and trunk. 3. Lesion symptoms: eczema in the acute stage of skin erythema, edema, papules, vesicles and oozing, etc., subacute stage of erythema and oozing symptoms reduce, blisters and vesicles gradually healing, scabs, flaking symptoms, chronic stage of the skin appeared to be hypertrophy, roughness, peeling, etc., and dry eczema is mainly manifested as dry skin, with fine cracks, usually reddish color, light, a small amount of scaling In mild cases, there is a small amount of scales, and in severe cases, there are more white, large pieces of scales coming off. Eczema and dry eczema patients are advised to go to the dermatology department of a regular hospital, complete the examination, and give targeted treatment after clarifying the cause of the disease.