目的:十味败毒散(十味败毒汤)是治疗湿疹、特异反应性皮炎等皮肤病的常用汉方处方。处方中荆芥、独活等多数生药含有精油。作者看到十味败毒散加连翘的热水提取液及水蒸气蒸馏组分可抑制实验性Ⅰ型变应反应,进而明确了抗变应性的挥发成分。 Purpose: Shiweibaidusan (Shiweibaidutang) is a commonly used Kampo prescription for the treatment of skin diseases such as eczema and atopic dermatitis. Most crude drugs such as Nepeta and Duohuo contain essential oils. The authors observed that the hot water extract and steam distillation component of Dendrobium candidum can inhibit the experimental type I allergic reaction, and then the volatile components of the antiallergic substances were identified.