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

• Drains damp-heat from the Liver and Gallbladder channels:  for damp-heat in the upper part of the Gallbladder channel with such symptoms as red, swollen, sore throat and eyes, swollen and painful ears, or sudden deafness.  Also for damp-heat in the Liver or Gallbladder channels (especially the lower parts) with such symptoms as jaundice, pain, swelling, or dampness in the genital area, or foul-smelling vaginal discharge and itching.*
• Drains and pacifies excessive Liver fire:  for Liver fire blazing upward with headache or red eyes.  Also for Liver wind-heat with fever, spasms, convulsions, or flank pain.*