The correct name of the drug should be Ghost Needlewort, which has the efficacy of dispelling wind and removing dampness (dispelling wind and dampness in the body), activating blood circulation and subduing swelling, and is used for treating sore throats and other pains. As a traditional Chinese medicine, Ghost Needlewort is the whole grass of the plant Ghost Needlewort in the family of Asteraceae. Ghost Needlewort is cold and bitter in nature, and enters the meridians of liver, kidney and spleen. Ghost needle grass has the effect of clearing away heat and detoxification (removing heat and toxicity from the body), activating blood circulation and swelling, dispelling wind and relieving pain (dissipating wind and evil, relieving pain in the muscles and bones), etc. It can be used for treating rheumatism and paralysis, bruises, sore throat, dysentery, jaundice, and snake bites, etc. If you overdose on it, it will cause a lot of pain and suffering. If overdose of Ghost Needlewort, it will lead to increased burden on the gastrointestinal tract, causing abdominal pain, abdominal distension and so on. In addition, menstruating women and pregnant women are forbidden to take Ghost Needlewort, because Ghost Needlewort can activate blood circulation and remove blood stasis (promote blood circulation and eliminate blood stasis in the body), which may lead to miscarriage or excessive menstruation if taken. In addition, Ghost Needlewort is cold in nature, so it is forbidden to take it for people with cold spleen and stomach (weak and cold spleen and stomach) to prevent the aggravation of the condition. The specific use of Ghost Needlewort should be under the guidance of a doctor, not self-medication.