Drinking astragalus water after the beginning of night sweats (abnormal sweating after going to sleep, waking up sweating stopped) may be due to astragalus warm dry injury to the yin fluid, overdose or not the right dose of the medicine leads to yin deficiency and fire (deficiency of yin and essence in the body, the emergence of hyperactive deficiency fire), and then night sweats manifestation. Astragalus has the ability to replenish qi and promote yang (replenish qi to make yang qi rise), solid surface to stop sweating (through consolidation of the muscle surface to stop sweating), diuresis and edema, etc., can be used for qi deficiency weakness, edema, and the surface of the deficiency of self-sweating (due to the weakness of the surface of the muscle frequent sweating naturally), in the qi sinking (deficiency of the spleen and stomach qi, the internal organs fall and other manifestations), such as evidence of disease treatment. However, due to its warm nature, if it is consumed in excess, or if the patient himself has a deficiency of yin, it may lead to damage or aggravate the damage of yin, which in turn leads to yin deficiency and fire, and night sweating. Therefore, Astragalus needs to be used under the guidance of a professional doctor, and should be avoided or used in combination with other medicines for those who are suffering from yin deficiency and fire or solid heat.