Eczema on the face may be related to mental factors, or due to allergic reactions, endocrine and metabolic diseases and other factors. 1. Mental factors: if long-term mental stress, excessive anxiety and depression, it may increase the chances of eczema on the face. 2. Allergic reaction: commonly found in people with allergic body type, after the face is stimulated by animal hair, pollen, ultraviolet rays and other external factors, it is easy to cause an allergic reaction, which may induce eczema on the face. 3. Endocrine and metabolic diseases: for example, diabetes, hyperthyroidism and other metabolic diseases, resulting in itchy skin, erythema, papules, may cause eczema on the face. Eczema on the face, may also be caused by other reasons, it is recommended to seek medical attention as soon as possible, clear causes, give targeted treatment and conditioning.