1. Nourishing qi and nourishing yin. Astragalus is slightly warm, sweet in taste, belonging to the spleen, lung meridian, has the effect of replenishing qi and rising yang, fixing the surface and stopping sweating, reducing water and swelling, generating fluids and nourishing blood, moving the paralysis, supporting the toxin and pus, and converging sores and muscles. Codonopsis pilosula is flat in nature and sweet in flavor, with the effects of tonifying the middle Jiao, strengthening the spleen and lungs, nourishing the blood and promoting the production of body fluid. Maitong is slightly cold in nature, sweet and bitter in flavor, and has the effect of nourishing yin and generating fluids, moistening the bowels, nourishing yin and moistening the lungs.
2. Clearing heat and removing toxins. Both Codonopsis and Maitake have the effect of nourishing yin and generating fluids, and can be used to improve symptoms such as dry mouth and tongue, sore throat due to inflammation of stomach fire.
Overall, the efficacy of Astragalus, Radix et Rhizoma Ginseng and Radix et Rhizoma Polygoni Multiflori in soup is mainly to replenish qi and nourish yin, and remove heat and toxins. As the medicinal properties of the three are on the cool side, it is therefore prudent to take it for those who have a cold constitution and are prone to diarrhea. In addition, even without the above symptoms of people should consult a doctor's opinion before consumption.