Objective To determine the serological specificity IgG in eczema patients with food intolerance and provide a diagnostic bases for clinical diagnosis and treatment of the disease. Methods Enzyme-linked immunosorbent assay (ELISA) was adopted to detect the level of serum specificity IgG of 54 eczema patients with food intolerance and 20 healthy controls. Results 92.59% of the eczema patients were found possessing positive speciifc IgG. While in healthy controls, only one case showed positive speciifc IgG to milk, the positive rate is 5%. For the 50 patients who undergoing dietary adjustments, the total effective rate was 80%. Conclusion Food intolerance test may provide useful references for etiological diagnosis and treatment of eczema.%目的通过检测食物不耐受患者血清特异性IgG，探讨其在湿疹诊治中的临床意义。方法采用酶联免疫吸附试验（ELISA）法检测54例湿疹患者（患者组）和20名正常人（对照组）血清中14种食物过敏原特异性IgG。结果患者组54例患者食物不耐受检测阳性率为92.59%，对照组阳性率为5%（P＜0.01）；对照组中只有1例牛奶阳性(5%)，其他均为阴性；50例随访患者经饮食调整后，总有效率达80%。结论食物不耐受检测对湿疹患者的病因诊断和治疗具有指导意义。
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