The GREAT FOUR tincture tis used for an external attack of Xie (harmfulness) that has entered the Yang Ming layer, where a battle between Wei Qi (defensive Qi) and Xie (harmfulness) occurs, creating "great symptoms": strong pulse, sweating, thirst, and hotness. Sometimes there is even delirium. Licorice supports the immune system and the normal functions of the respiratory system.
The GREAT FOUR tincture is based on the traditional Chinese medicine recipe Bai Hu Tang.
More information about traditional recipes can be found in the Herbal.