例一:男,30岁。因突然胸骨后闷痛,面部浮肿,全身奇痒12小时来诊。患者发病时路过一垃圾堆,骤感胸骨后挤压性疼痛、胸闷憋气、全身出汗。数分钟后全身奇痒,皮肤有散在不规则红斑,面与口唇明显浮肿。约半小时后,胸痛缓解。经自服强的松与去敏灵,面部浮肿大部消退,皮肤红斑消失,但面部仍有胀麻感,且胸闷。病前未服药物及进特别食物。体检:皮肤划痕症阳性,未见 Example 1: Male, 30 years old. Due to sudden tenderness after the chest, facial edema, systemic itching 12 hours to visit. Patient when passing a trash heap, sudden pressure after the chest pain, chest tightness, suffocation, body sweating. After a few minutes itchy body, scattered irregular erythema in the skin, face and lips were swollen. About half an hour later, chest pain relief. The self-serving prednisone and to the Min Ling, most of the facial edema subsided, the skin disappeared erythema, but there is still a sense of expansion of the face, and chest tightness. Before taking the medicine and into the special food. Physical examination: skin scratch positive, no