It is mainly grown artificially and can be planted twice a year. It is bitter and cold in nature, and its main effect is to clear heat and detoxify the body, dispel carbuncles and nodules, diuretic and damp, and is good at treating various inflammatory diseases, and is effective for sore throat, dysentery, enteritis, and damp-heat jaundice. Nowadays, in clinical practice, for various cancer patients’ body conditioning after chemotherapy, dispersing blood stasis and eliminating nodules, more drugs such as Semen Nerium are used together. For various insect and snake poisons and bites, it can be made into wine and applied externally to wounds. It is also effective for viral hepatitis, superficial gastritis, and various gynecological inflammatory diseases such as pelvic inflammatory disease and adnexitis. It can also be used for coughing and coughing caused by pneumonia in children. Therefore, the efficacy of the herb is widely used, but because of its cold nature, it is easy to hurt the body’s yang energy, so it is not easy to use for people with cold bodies and is prohibited for pregnant women.