Red ginger, also known as yantuo, can be used to treat bruises, menstrual disorders and other conditions as prescribed by a doctor. Iwatuo is the dried rhizome of the Southwest Ghost Lantern Barberry or Feather Leaf Ghost Lantern Barberry, which has the efficacy of dispelling wind and dampness (dispelling wind and dampness in the body), activating blood circulation and regulating menstruation (regulating menstruation by activating blood circulation), and astringing and stopping diarrhea, and it can be used for treating bone fracture, bruise, menstrual disorders, rheumatism and pain, menstrual pain, intestinal inflammation, dysentery, and bleeding from trauma. Yantuo can be decocted or soaked in wine for internal use, or can be powdered and sprinkled on the affected area or applied externally. Note that pregnant women are forbidden to take this medicine. Patients need to go to the hospital in time after the emergence of uncomfortable symptoms, under the guidance of the physician to identify the use of medication, do not blindly use their own medication, so as not to delay the condition or produce side effects.