The essential oil in black cardamom reveals gastrointestinal properties that can stimulate appetite or aid digestion. It can therefore be used to treat inflammation, indigestion, abdominal pain, gastrointestinal diseases and cholecystitis (excessive secretion of bile) In traditional Chinese medicine, black cardamom is used for gastritis and malaria. In traditional Indian medicine. Rhizome decoction of Amomum subulatum is used to treat jaundice