Eczema and psoriasis belong to two different diseases, and the difference between the two includes the causes, symptoms, and treatment. 1. Causes: The causes of eczema are mostly related to external factors such as allergens in the environment or food, microorganisms, sun exposure, and internal factors such as endocrine diseases and nutritional disorders. The cause of psoriasis is mostly due to the combination of genetic, immunologic and environmental factors. 2. Symptoms: Eczema symptoms are mainly manifested as erythema, edema, papules, vesicles and other symptoms, accompanied by obvious itching. Psoriasis patients are mainly manifested as red patches covered with silver-white scales, and some of them are accompanied by dry skin, bleeding and other symptoms, and itching is not obvious. 3. Treatment: patients with eczema can use topical dexamethasone, halometasone and other glucocorticoid drugs, oral antihistamines to help anti-inflammatory, anti-allergic. Psoriasis patients need to take oral Avicenna capsules, silver granules and other medications, but also can choose biological agents such as Skuclizumab treatment. There are many differences between eczema and psoriasis, so it is advisable to consult a doctor in the hospital about the matter.