Eczema is an allergic skin disease caused by internal and external factors. It is generally considered to be an allergic reaction and not caused by moisture. Eczema can occur at any age, with the main sites of onset on the face or extremities, but can also be found throughout the body. In cases of localized or generalized infection, the skin can become flushed, vesicular, oozing and crusty, or even fused, and the borders are not particularly clear. If further scratching occurs, ulceration, infection, spread, etc. may occur. Oral antihistamines, such as loratadine and cetirizine, can be used for treatment. For external medication, hormone-containing creams or hormone-free creams can be used, but early treatment at a hospital is recommended for specific diagnosis and treatment.