There is no clear definition of which disease is best treated by Xuan Ginseng, it is usually after accurate diagnosis and appropriate compounding that the drug is the best medicine for treating the corresponding disease. Xuan Shen is also known as Yuan Shen and Black Ginseng. It has the efficacy of clearing heat and cooling blood (relieving blood heat by clearing heat), and is suitable for those who are suffering from warm disease with two burnt qi and blood (the evil heat on the outside has not been relieved but continues to develop on the inside), and those who are suffering from macular rash, and is often used in combination with gypsum, buffalo horn, and Zhi Mu. Xuan Shen is sweet and cold, bitter and cold, good at nourishing yin and lowering fire (nourishing yin essence and lowering fire), suitable for yin deficiency and lung dryness (deficiency of yin in the human body, resulting in lung dryness without nourishment), dry and sore throat, dry cough with little phlegm, lung and kidney yin deficiency, labor cough and bone vapor, can be used in conjunction with Chuan Bei, Dixie, Maitong, Lily, etc. It can also detoxify and dissipate the toxins and lumps. This product can also detoxify and disperse nodules, applicable to sore throat, sores, carbuncles and swollen poisons, scrofula (mainly refers to the neck lymph nodes tuberculosis), phlegm nuclei (subcutaneous lumps swollen up like nuclei). The adverse reactions and contraindications of Xuan Shen are not clear, it should not be used with quatrefoil, and should not be taken by people with deficiency of spleen and stomach (spleen and stomach weak and cold), or with little food and loose stools (feces that are thin and unformed). Drugs should be used under medical supervision, do not blindly self-medicate.