患者刘某,男,45岁,水暖维修工。1988年夏在气温38℃环境下四肢裸露作业5天,接触大量玻璃纤维,四肢和躯干皮肤出现红色斑丘疹,伴剧烈瘙痒和双上肢水肿,散在皮肤脱屑。同工种工人无类似表现。经数月治疗皮疹消褪,四肢皮肤呈苔藓样变。出院后再次接触玻璃纤维,皮疹多次复发加重.1992 Liu patients, male, 45 years old, plumber maintenance workers. In the summer of 1988, exposed limbs and limbs exposed to temperatures of 38 ℃ for 5 days exposed large amounts of fiberglass. Red rash appeared on the extremities and trunk of the skin accompanied by intense itching and upper extremity edema. Scattered skin scattered. No similar performance with workers of the same type. After several months of treatment rash faded, skin was moss lichenification. After discharge again contact with the glass fiber, multiple recurrence of the rash aggravate