There are various features of eczema, and there are roughly three types seen in clinical practice: i. Acute eczema. Acute eczema mainly manifests itself as papules and papules on the epidermis, with some blistering and even epidermal erosion and running water. Second, subacute eczema. Sub-acute eczema is the development of acute eczema, the appearance of epidermal crusting or mild dryness, but also a small amount of papules and papules, generally do not produce the symptoms of running water. Third, chronic eczema. Most of them are developed by subacute eczema or their own situation gradually developed into chronic eczema. The performance of the epidermis is dry, clotted, flaky and even epidermal hyperplasia, mossy, this situation may be slightly tricky to treat.