Lanternwort has the ability to clear heat, move Qi, relieve pain and reduce swelling. Lanternwort is sweet and cold in nature and is commonly used to treat colds, fevers and mumps. Lanternwort can also treat sore throats and coughs, as well as abdominal distention and hernia. Lantern grass is also useful for treating aspergillosis. A decoction of Lantern grass, pounded and applied externally, can be useful for treating aspergillosis. It can be used in a decoction with other medicines to clear heat, move Qi, relieve pain and reduce swelling. Some people who often have a sore throat can also boil lantern grass in water or drink it as a tea.