Objective: To study the skin irritation and allergia of Ai tong Ning plaster.

研究观察癌痛剂的皮肤刺激性和致敏性。

Conclusions: IPO has no irritability and allergia, least or no toxicity, but better functions of anti-inflammation, abirritation and detumescence as well as high safety in administration.

痛膏有较好的抗炎、镇痛、消，无刺激性和过敏性，毒性极小或无毒性，药安全性高。