Excerpted from Bensky:  Chinese Herbal Medcine Materia Medica

• Invigorates the blood, dispels stasis, and unblocks menstruation:  for a wide variety of problems due to blood stasis.  Because it is particularly effective in unblocking the menses, in women it is used for blood stasis patterns with amenorrhea, abdominal pain, postpartum dizziness, retained lochia, and abdomibnal masses.  Other uses include trauma, nonsuppurative sores, carbuncles, and dark pruplish erythema.  Also for incomplete expression of the rash of measles or painful obstruction of the chest due to blood stasis.*