Drains heat and purges accumulations - high fever, profuse sweating, thirst, constipation, abdominal distention and pain, delirium, yellow tongue coating, full pulse which indicates intestinal heat excess or yang ming stage illness.
Drains heat from the blood - blood in the stool from bleeding hemorrhoids or heat in the intestine; vomting blood or nosebleed accompanied by constipation; painful eyes or fire toxin sores due to heat in the blood level.
Drains damp-heat via the stool - jaundice, dysentery, lin syndrome.
Invigorates the blood and dispels blood stasis - amenorrhea, abdominal masses, fixed pain due to blood stasis (recent and long-term blood stasis).
Clears heat and reduces fire toxicity - for burns, hot skin.