The top quality of qi tonic is ginseng, which is the first important medicine for treating qi deficiency, such as unique ginseng soup, but ginseng is more expensive, used for qi deficiency, qi and yin deficiency in acute and serious cases, not very necessary when the party ginseng instead, the tonic power is slower, although it can not save the deficiency, but it can replenish the middle qi, benefit the lung qi, and also nourish the blood, the party ginseng instead of ginseng should increase the dose. There is also American ginseng, which is cooler than ginseng, but is good at nourishing yin and clearing heat, suitable for those who have deficiency of both qi and yin and heat, but the price of American ginseng is also more expensive, so the availability of flat prince’s ginseng instead of qi and yin two injuries, fire is not strong, its power is weaker than that of American ginseng, suitable for clearing tonic, children with spleen deficiency, less food and tiredness, qi and yin two injuries and thirst are often used, the price is cheaper. When the above drugs are used clinically, they are combined with jujube to strengthen the effect of warming the qi and blood, and to moderate the medicinal properties and protect the stomach qi.