Black Tin Dan is composed of black tin, fenugreek, neem, sulfur, aconite, wood sorrel, bone marrow and other traditional Chinese medicines, with the effect of dropping phlegm and stabilizing wheezing. Hei Xidan, with the effects of dropping phlegm and stabilizing wheezing, elevating yin and yang, is commonly used clinically for treating cold pain in the chest and abdomen, upper fullness and lower emptiness (headache and irritability in the upper part of the body, and lumbar soreness and frequent urination in the lower part of the body), deficiency of vital energy, and phlegm congestion and wheezing. Hei Xidan should be taken with light salt soup or ginger soup. The adverse effects of Hei Xidan are not known, and pregnant women should use it with caution. Adverse reactions and contraindications are unclear. It should be noted that Heixidan should not be taken for a long time or overdosed, and pregnant women should be cautious. Avoid spicy food when taking this medicine. Black tin Dan need to be taken under the guidance of a doctor, not blindly use their own medication, in order to avoid delaying the condition.