患者女,46岁,结婚20年。最近6年每当与丈性交10分钟后,即于颜面及臂部出现剧烈瘙痒和潮红。即使行完全穿衣服的性交,亦不能防止剧烈痒和潮红的发生。接触丈夫用过的枕头及给丈夫理发后,亦会出现剧烈的瘙痒和皮肤发红,但给两个儿子理发后,即无此现象。接触带皮的马铃薯后患者亦发生严重的瘙痒。此外,她有明确的过敏性鼻炎史,吃绿色和黄色蔬菜后有呕吐、腹泻等胃肠道症 Female patient, 46 years old, married 20 years. In the past 6 years, every 10 minutes after having sex with her, severe facial itching and arm itching and flushing. Even if the clothes are completely clothed, it can not prevent intense itch and flushing. After touching her husband’s pillow and hairdressing her husband, she will experience intense itching and redness of the skin, but this is not the case after giving her haircut to two sons. Patients also experience severe pruritus after touching the skinned potato. In addition, she has a clear history of allergic rhinitis, vomiting, diarrhea and other gastrointestinal symptoms after eating green and yellow vegetables