变态反应性鼻炎是一种常见病,其主要症状是鼻痒、喷嚏、水样鼻分泌物多和鼻阻。据文献报导,近年来本病发病率急剧增多,原因与大气污染有关,特别是儿童罹患率甚为惊人。兼子顺男报导:大气污染地区发病率比非污染地区高五倍。国内虽然没有这类报导,也应采取防治措施。近来各家提出的治疗方法很多,如抗组织胺剂、肾上腺皮质类固醇剂、冷冻、电烙、脱敏疗法、神经切断术等,其疗效尚待正确评价。我们采用胎盘 Allergic rhinitis is a common disease, the main symptoms are nasal itching, sneezing, watery nasal discharge and nasal resistance. According to the literature, the incidence of this disease has risen sharply in recent years due to the air pollution, especially the attack rate of children. Yoshiko Shun reported: the incidence of air pollution in areas than non-polluting areas five times higher. Although there is no such report in our country, we should also take preventive and control measures. Recently, many proposed treatment methods, such as antihistamines, adrenal corticosteroids, freezing, ironing, desensitization therapy, nerve transection, etc., its efficacy remains to be correctly evaluated. We use the placenta