药鼠李树原产北美洲西北部的一种药鼠李树（珀希鼠李鼠李属），其树皮是药鼠李皮剂的原料。

A buckthorn(Rhamnus purshiana) native to northwest North America, the bark of which is the source of cascara sagrada.

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目的：探索抗风湿性关节炎药李氏老膏用于治疗鞘膜积液的创新性治疗作用。

Objective:To explore a creative therapy by treating tunica vaginalis hydrocele with Lishi Laogao sticking plaster, which was used to treating rheumarthritis companied by joint hydrocele.

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“为什么，医生？”李夫人问。“我需要药。看我的舌头！”

"Why, doctor?" asked Mrs Li. "I need some medicine. Look at my tongue!"

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