The difference between tiger ginger and huang jing is mainly in the medicinal source, efficacy, main treatment, contraindication and so on. 1. Medicinal source: tiger ginger is the dried rhizome of Hubei Huangjing, a plant of the genus Huangjing, family Liliaceae. Huangjing is the dried rhizome of Dian huangjing, huangjing or huangjing multiflora, family Liliaceae. 2. Efficacy: The efficacy of tiger ginger is to dispel phlegm and stop bleeding, reduce swelling and detoxification. It is also effective in tonifying qi and nourishing yin, strengthening the spleen, moistening the lungs and benefiting the kidneys. 3. Indications: Tiger ginger is mainly used for treating cough, vomiting blood, nosebleed, traumatic bleeding, sore throat, sores and poisons. Rhizoma Polygonati Odorati is mainly used for treating spleen and stomach qi deficiency, tiredness and fatigue, gastric yin insufficiency (insufficient yin fluid in the stomach), dry mouth and low food intake, lung deficiency and dry cough, essence and blood insufficiency, lumbar and knee soreness and tenderness (a feeling of soreness and tenderness in the lumbar area and knee area), premature whitening of the beard and hair, and internal heat and thirst (internal fever accompanied by symptoms of overeating and excessive urination), and other diseases. 4. Contraindications and Precautions: The contraindications of tiger ginger are not clear. Huang Jing is not suitable for people with middle cold and diarrhea, phlegm-dampness and plumpness (stomach distension and discomfort) and Qi stagnation. If necessary, it is recommended to go to a regular hospital for consultation and treatment under the guidance of a professional physician to identify the symptoms.