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

• Clears Liver fire and brightens the eyes:  for upward-blazing of Liver fire with red, painful, or swollen eyes, or headache and dizziness.  Also used for eye pain that increases in the evening due to Liver deficiency, especially when the eyes are neither red nor swollen.*
• Clears heat and dissipates nodules:   for any neck lump or nodule, as in scfofula, lipoma, swollen glands, or goiter due to phelgm-fire.  Also used for similar nodules in the inguinal canal and other parts of the body.*
• This herb has recently been used for hypertension, especially when accompanied by Liver fire or patterns of ascending yang.*