Sha ginseng and yuzhu, when taken correctly, generally do not cause fire, and both have certain fire-reducing effects. Radix Panax Ginseng is a kind of traditional Chinese medicine, which is divided into Northern Radix Panax Ginseng and Southern Radix Panax Ginseng. Northern Radix Panax Ginseng is slightly cold in nature, sweet and bitter in taste, belonging to the lung and stomach meridians, with the effect of nourishing yin and clearing the lungs, benefiting the stomach and promoting the production of fluids, and is used for lung-heat and dry coughs, coughs with phlegm and blood, deficiency of stomach yin (insufficient yin fluid in the stomach), fever and fluid injuries, and dry pharynx and thirst. Nansha Ginseng is slightly cold in nature, sweet in taste, and belongs to the lung and stomach meridians. It has the efficacy of nourishing yin and clearing the lungs, benefiting the stomach and generating body fluid, resolving phlegm and benefiting qi, and is used for lung-heat and dry cough, cough with laborious cough in yin deficiency, dry cough with phlegm and sticky phlegm, deficiency of gastric yin, scarcity of food and vomiting, deficiency of qi yin, and vexation and heatiness (irritable and sullen) with dryness of mouth. Neither Nansha Ginseng nor Beisha Ginseng can be used with Veratrum. Yucca is also a traditional Chinese medicine, slightly cold in nature, sweet in taste, belonging to the lung and stomach meridians, with the efficacy of nourishing yin and moistening dryness, generating fluids and quenching thirst, and is used for lung and stomach yin injuries, dry and hot coughs, dry and hot throat and thirst, and internal heat and thirst (fever accompanied by symptoms such as overeating, excessive drinking, excessive urination, etc.). Southern and northern ginseng is slightly cold in nature and has the effect of nourishing yin and generating fluids, which can be used to treat lung-heat and yin deficiency, fever and fluids; jade bamboo is also slightly cold in nature, which can nourish yin and generates fluids, and can be used to treat lung-stomach yin injury, internal heat and thirst. Therefore, all three of them will not cause fire in general, and have a certain effect of reducing fire. When taking Sha Shen and Yuzhu, you should first consult a professional Chinese medicine doctor to take them in the right way, and should not use them on your own.