红热痛是一种较少见的阵发性血管扩张性疾病。近年来,我们收治4例汞中毒致继发性红热痛。现报告如下。 临床资料:本组4例均为男性,年龄25～35岁,病程6～12小时。既往均患银屑病多年,均在同一家私人诊所服用药物治疗20～35天,否认患有高血压病、糖尿病、类风湿性关节炎等其他疾病。临床表现为肢体远端(足前部、足底、足趾及小腿)局部皮肤温度增高,皮肤潮红肿胀,肢体烧灼样疼痛(疼痛在右下肢膝关节以下2例,左下肢、双下肢膝关节以下各1例),站立、运动、热敷后症状加重,休息、抬高患肢 Red hot pain is a rare paroxysmal vasodilatory disease. In recent years, we treated 4 cases of secondary red hot pain caused by mercury poisoning. The report is as follows. Clinical data: This group of 4 patients were male, aged 25 to 35 years, duration of 6 to 12 hours. Formerly suffering from psoriasis for many years, all in the same private clinic medication 20 to 35 days, denied suffering from hypertension, diabetes, rheumatoid arthritis and other diseases. Clinical manifestations of distal limbs (ankle, foot, toe and calf) local skin temperature increases, the skin flushing swelling, body burning pain (pain in the right lower limb below the knee in 2 cases, left lower extremity, lower extremity knee The following 1 case), standing, exercise, hot compress the symptoms, rest, raise the limbs