Astragalus, angelica, ginseng in water has the effect of tonifying qi and blood, but the active ingredients in water are limited, it is recommended to decoct the way. 1. Astragalus is sweet in taste and slightly warm in nature, with the effect of replenishing qi and raising yang (replenishing qi in order to raise yang qi), fixing the surface to stop sweating (stopping sweating by consolidating the surface of the muscle), inducing diuresis and eliminating swelling (facilitating urination and eliminating oedema), generating fluids and nourishing blood (replenishing the body’s water and blood), supporting toxin and draining pus (discharging the body’s pus and toxin), and converging sores and muscle growth (helping the sores to heal more quickly, and promoting the growth of new flesh). It can be used in the treatment of weakness, poor appetite, unformed stool, chronic diarrhea, prolapse of anus, blood in stool, heavy menstruation, easy sweating, skin abscesses and ulcers that are difficult to heal. 2. Angelica sinensis has the effect of tonifying blood, regulating menstruation and relieving pain (regulating menstruation, relieving menstrual pain), moistening the intestines and laxatives, suitable for people with blood deficiency and yellowish color, dizziness and palpitations (rapid heartbeat, often accompanied by panic), menstrual disorders, menstrual closure and dysmenorrhea, and intestinal dryness and constipation; 3. Radix Codonopsis pilosulae is sweet in taste and flat in nature, possessing the efficacy of strengthening the spleen and lungs (strengthening the functions of the spleen and lungs), nourishing the blood and promoting the production of fluids, and is suitable for treating people with weakness of the spleen and stomach, deficiencies in qi and blood, and body fatigue and weakness. Therefore, astragalus, angelica and codonopsis ginseng in water has certain effects of tonifying qi and blood, but the active ingredients in the water are limited and the therapeutic effect is limited. Drugs are recommended to be used under the guidance of a traditional Chinese medicine practitioner, so as to avoid improper use of medicines, improper use of the disease.