Huangjing is a traditional Chinese medicine and the main way to take Huangjing is by decoction. It is the dried rhizome of Dian huangjing, Huangjing, or Huangjing multiflora of the lily family, with a sweet taste and flat nature, and has the efficacy of replenishing qi and nourishing yin, strengthening the spleen, moistening the lungs, and benefiting the kidneys, and is mainly used for treating conditions such as deficiency of qi of the spleen and stomach, tiredness and fatigue, insufficient gastric yin (insufficient yin fluid in the stomach), dry mouth and low food intake, coughing with deficiency of lungs and dryness of the lungs, coughing up blood with exertion, aching and weakness of the waist and knees, and internal heatiness and thirst (internal fever accompanied by symptoms of overeating, excessive drinking, excessive urination, etc.). The adverse effects of this product are not known, but it should not be used by those with spleen deficiency and dampness obstruction, phlegm-dampness congestion, or qi stagnation and fullness. Yellow essence is used as an herbal medicine and the main usage is decoction, it is recommended that this product be used under the supervision of a doctor. Self-medication of this product is not recommended.