Abstract：
A 14-year-old boy developed an erythema multiforme-like reaction following Toxicodendron radicans (poison ivy) allergic contact dermatitis three separate times over the course of 3 years. The severity of each erythema multiforme-like reaction corresponded to the severity of the allergic contact dermatitis which preceded it.
摘要：
一个14岁的男孩在3年的过程中分别三次出现了弓形虫（毒常春藤）过敏性接触性皮炎后，出现了多形性红斑样反应。每种多形性红斑样反应的严重程度与之前的过敏性接触性皮炎的严重程度相对应。
