Yiyuan Tang is mainly composed of ripened adder, licorice, dried ginger and ginseng. It has the functions of restoring yang to save reversal (saving fainting, unconsciousness, etc. by warming and tonifying yang qi) and benefiting qi and generating veins. 1. Restoring Yang to save the rebellious: it helps to reverse the “rebellious” symptoms such as poor physical condition and poor prognosis, and helps the body to recover. 2. Benefiting qi and generating pulse: it helps to improve internal injuries and fatigue, shortness of breath and laziness in speech, pallor, fatigue and weakness, and muscle wasting. 3. Treating Dai Yang syndrome: It can treat the symptoms of deficiency and cold in the lower Jiao with red face and body heat, and deficiency and cold in the lower Jiao with pseudo-heat in the upper Jiao. In conclusion, Yi Yuan Tang helps to replenish qi, clear heat and dissolve dampness, which is good for improving and helping those with deficiency of yin and blood and lack of vital energy. Its adverse reactions and contraindications are not yet clear, it is recommended to take this product under the guidance of a doctor, do not apply without authorization, so as not to delay the condition.