The correct way to soak astragalus is to use boiling water to soak, but the water temperature is suitable before taking. The common dosage is 10-20 g. However, it is difficult to achieve the therapeutic effect by soaking in water, and it is necessary to follow the doctor’s instruction to use the medicine reasonably. Astragalus has the effects of strengthening the spleen and tonifying the middle, elevating yang and lifting up the sun (elevating the yang qi of the body in order to lift up the sunken organs), and supporting the toxicity and generating muscles (discharging poisonous evils to promote muscle growth and wound healing). It can be used for treating spleen qi deficiency, spontaneous sweating (involuntary sweating during the daytime, aggravated by sweating with a little movement), deficiency of qi and blood, and sores that are difficult to ulcerate and putrefy, or difficult to converge for a long period of time. Where the surface of the real evil, sores and ulcers at the beginning, or after the collapse of the heat and toxicity is still prevalent, are not suitable for the use of astragalus. Astragalus drink water if there is any discomfort suggest timely stop using, timely medical treatment.