Charred loofah has the efficacy of dispelling wind and clearing the channels (removing wind evils and dredging the meridians), cooling the blood and stopping bleeding (cooling and moistening the blood to prevent bleeding). Raw loofah has the efficacy of dispelling wind and clearing the channels, activating blood circulation and lowering breast milk. It can be used in the treatment of joint pain, muscle contracture (continuous tension and stiffness of muscles), chest and ribs distension and pain, breast milk impassability, breast carbuncle swelling and pain due to invasion of the channels by wind, cold and dampness evils. After carbonization, the efficacy of loofah is weakened, mainly cooling blood and stopping bleeding, can be used for the treatment of blood in stool, bleeding gums. The adverse reactions and contraindications of this drug are not clear, it is recommended to apply under the guidance of traditional Chinese medicine practitioners to identify the symptoms.