The method of decoction of Si-Yi Tang is to decoct appendicia first, about 30 minutes later, dried ginger and licorice are decocted with the same medicine; the first decoction continues to be decocted after boiling for 20 minutes to 25 minutes, and the second decoction is decocted after boiling for 15 minutes to 20 minutes, and the two medicinal liquids are mixed together, and are taken in two times in the morning and in the evening.
Si Reverse Tang, composed of licorice, dry ginger and epiphyllum, has the effect of returning yang to save the body (by warming yang qi to save fainting, unconsciousness, etc.). It is clinically used for treating Shaoyin disease, cold syncope of heart and kidney yang decline, with syncope of the limbs, coldness and curling up in the bed, weakness and desire to sleep, pallor, abdominal pain and discharging of fluid, vomiting and no thirst, with white slippery fur on the tongue and a fine pulse.
It can also be used in the treatment of sun disease (wind-cold evil attack on the body’s muscle surface, appearing cold and fever, head and body pain, floating pulse manifestations) mis-sweating dead yang people.
It is recommended that the drug be used under the guidance of a clinician so as not to cause delay in the treatment of the disease.