The herb Astragalus belongs to the category of deficiency tonics. It is sweet, slightly warm, and belongs to the lung and spleen meridians. Its effects are mainly to strengthen the spleen, tonify the middle, raise the Yang and lift the sunken, benefit the Wei and consolidate the surface, diuretic, and to support the toxin to produce muscle. It is mainly used clinically for the evidence of Spleen-Qi deficiency, and Astragalus is an important medicine for tonifying the middle and benefiting Qi. It is good at treating the evidence of spleen deficiency of middle qi subsidence, such as the clinically used tonic for middle qi soup, and Shengma, Chaihu and Ginseng in combination, the effect of ascending yang and lifting sockets. Treatment of prolonged diarrhea prolapse, visceral prolapse and other symptoms. Astragalus can both nourish the spleen and benefit the qi, and can diuretic swelling, can be used to treat spleen deficiency water dampness transport adverse caused by swelling, urine, often combined with atractylodes, poria, etc. Astragalus can be used to treat blood deficiency, or blood loss due to spleen deficiency, such as angelica blood soup, spleen soup; two lung Qi deficiency, astragalus can be used together with the paragraph of flowers, almonds and other expectorant cough products, treatment of lung Qi weakness, cough and asthma for a long time, shortness of breath and fatigue; three Qi deficiency sweating: lung Qi deficiency of people tend to Wei Qi is not solid, table deficiency spontaneous sweating. Astragalus can supplement the Qi of the spleen and lung, benefit the body and strengthen the surface, treating the weakness of the body and Qi, surface deficiency and spontaneous sweating susceptible to wind, often used with Atractylodes, wind, such as Yu Ping Feng San. Four Qi and blood deficiency, sores do not converge for a long time: Astragalus nourishes Qi can also support the toxicity of the muscle. If the sore is in the middle stage, the sore is deficient in toxicity and cannot be restored to the outside, the sore is flattened, the root plate is diffuse, and it is difficult to ulcerate and rot, the product can be used to replenish qi and blood, support the right qi, and rest the pus and toxicity to the outside, such as Tori Turbine Pus. In late stage of sores, due to weakness of qi and blood, the pus is clear and dilute, and the sore surface is difficult to converge, this product can be used to replenish qi and generate blood, which has the effect of regenerating the muscle and converging the sore, such as ten whole tonic soup. In addition, in cases of paralysis and post-stroke, where Qi deficiency leads to blood stasis and loss of nourishment of the tendons and veins, the symptoms include numbness of the skin or hemiplegia, Huang Qi can be used to replenish Qi to promote blood circulation, such as Yang Yang Returning Five Soup.