What is eczema? Eczema is a common skin disease characterized by redness, itching, dryness, peeling, edema, cracking and other symptoms on the skin surface. The causes of eczema are very complex, such as environmental pollution, drugs, malnutrition, genetics and other factors that may cause eczema. The symptoms and severity of eczema can vary from person to person, as can the frequency and duration of attacks. Detailed picture explanation of the symptoms of eczema 1. Symptoms of erythema: The most basic symptom of eczema is redness