It is not clear whether it is better to boil or infuse American ginseng and astragalus. However, the effect of boiling and soaking water of Radix Panax Ginseng and Astragalus is limited and cannot reach the therapeutic effect, so it is recommended to use decoction according to the doctor’s instruction. Radix Panax Ginseng has the effect of tonifying qi and nourishing yin, clearing heat and generating fluids. It is used in treating deficiency of qi and yin, deficiency of heat and tiredness, coughing, asthma, phlegm and blood, internal heat and thirst (internal heat accompanied by symptoms such as eating, drinking and urinating), and dry mouth and throat. Caution should be exercised if there is deficiency of yang in the middle, obstruction of cold and dampness, and dampness-heat and fire. It is not suitable to be used with veratrum. Astragalus has the effect of strengthening the spleen, tonifying the middle, and elevating Yang to lift the sunken organs. It can be used for treating qi deficiency and spontaneous sweating (involuntary sweating during the day, aggravated by sweating with a little movement), qi and blood deficiency, sores that are difficult to ulcerate and rot, or ulcers that are difficult to converge for a long period of time. It should not be used if the surface is solid and the evil is prevalent, the sores are at the beginning of ulceration, or the heat and poison are still prevalent after ulceration. If you need to use medicine, you should go through the doctor’s diagnosis and follow the doctor’s instructions to standardize the treatment.