Purge External Wind
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- Herb: White mulberry leaf, Kudzu root, Chrysanthemum flower, Siler root, Notopterygium root and rhizome, Fragrant angelica root, Chinese mint herb, Magnolia flower, Chinese cinnamon twig, Bupleurum root, Sichuan lovage rhizome, Chinese lovage root and rhizome, Chinese licorice root and rhizome
- Herb (Pinyin): Sang ye, Ge gen, Ju hua, Fang feng, Qiang huo, Bai zhi, Bo he, Xin yi hua, Gui zhi, Chai hu, Chuan xiong, Gao ben, Gan cao
- Indications: Benefits the Upper Orifices and the skin, Supports healthy circulation in the four limbs and Upper Burner
- Contraindications: Use with caution with thirst, during pregnancy or while nursing, Contraindicated with dehydration
External Wind is one of the six External Influences (Wind, Heat, Dryness, Cold, Dampness, Summer Heat), and was considered by ancient herbalists as the preeminent challenge to the body’s Wei or Defensive Qi. External Wind penetrates the body’s exterior through the “pores and cracks”. The concept of External Wind not only includes the movement of air, but any sudden changes in the external environment that disrupt the organism’s ability to adapt. Adequate circulation of Blood and Qi, Ying and Wei throughout the surface blocks the ability of External Wind to penetrate the exterior or surface layer.
When External Wind makes its way across the defensive boundary of the skin and muscles, it prepares the way for invasion of Heat, Summer Heat or Dampness, as if these other agents were riding “piggyback” on the Wind. Once it penetrates the external regions, External Wind (particularly if it is joined with Heat, Cold or Dampness) can lodge within the channels (Jing-luo), resulting in the obstruction of Qi, Blood and Moisture circulation. The obstruction of the superficial circulation of Qi and Blood characterizes many classical patterns of disharmony the Wei or Defense Qi in the surface layers and Luo Channels and Vessels. Purge External Wind effectively activates the Blood and Qi, the Ying and Wei, to support the body’s exterior.
RATIONALE
Siler root, Notopterygium root and rhizome, Fragrant angelica root and Sichuan lovage rhizome dispel External Wind from the skin and muscle layers, especially from the Tai Yang, Shao Yang and Yang Ming channels. Chinese mint herb, White mulberry leaf, Chrysanthemum flower and Bupleurum root dispel External Wind and also clear Heat while harmonizing the function of the Lung and Liver, the Qi and Blood. Chinese cinnamon twig, Kudzu root and Sichuan lovage rhizome help to eliminate External Wind along with Cold and Dampness from the upper regions of the head, face, shoulders and back. Magnolia flower particularly aids the elimination of External Wind and Cold from the Upper Orifices and the Upper Burner. Chinese licorice root and rhizome harmonizes and makes gentle the action of the other herbs as well as protecting the membranes of the upper respiratory tract.
All together, the herbs in this formula regulate surface circulation of Qi and Blood, harmonize the Lung and Liver and dispel the influences of External Wind, Heat, Cold and Dampness, thus supporting the body’s Defensive or Wei Qi.