Dr. Tai Yang-hsia, a dermatologist at National Taiwan University Hospital, explains that there are four conditions for eczema: (1) itchy skin; (2) typical signs of dermatitis such as lichenification (hardening and peeling skin); (3) chronic recurrence; (4) a family history of allergy.
台大皮膚科醫師戴仰霞指出，異位性皮膚炎有四個條件，一、癢，二、典型的病兆型態──苔癬化（粗糙、脫屑），三、慢性反覆發作，四、家族史。