Excerpted from Bensky:  Chinese Herbal Medicine Materia Medica, 3rd ed.

• Warms the middle, disperses cold, promotes the movement of qi, and alleviates pain:  for both Liver and Stomach channel disorders due to congealing cold or phlegm manifesting as headache, epigastric pain with nausea, drooling, reduced taste sensation, pale tongue, and a wiry or weak pulse.  Also for cold bulging disorders in the area traversed by the Liver channel, and dysmenorrhea.*
• Redirects rebellious qi downward and stops vomiting:  for acid regurgitation with vomiting.  Depending on the other herbs with which it is combined, it can be used for either cold or hot disorders.*
• Warms the Spleen, stops diarrhea, and expels cold-dampness:  for diarrhea due to cold from deficiency of the Spleen and Kidneys, and cold-damp leg qi.*
• Leads fire downward:  for sores of the mouth and tongue.  For this purpose the herb is ground into a powder, mixed with vinegar, and placed on the center of the soles of the feet.*