The three medicines, yam, codonopsis and ginseng, all belong to the nourishing category. Cooking the three medicines together can nourish the spleen and lungs, tonify the qi and produce fluids. Yam has the function of nourishing the spleen, nourishing the stomach, generating fluid, benefiting the lungs, and tonifying the kidney and astringent essence. It is often used to treat symptoms such as loose stools, loss of appetite, excessive leucorrhea, cough, and tiredness. It is not suitable for those with internal stagnation, or those with fullness of dampness in the middle of the body (too much dampness causing fullness and discomfort in the spleen and stomach). Radix Codonopsis Pilosulae has the effects of generating body fluid, nourishing blood, and tonifying the spleen and stomach. It is often used to treat symptoms such as poor appetite, cough and asthma, panic, dizziness and fatigue. It should not be used together with quassia. Ginseng has the function of tonifying vital energy, promoting the production of body fluid and nourishing blood, tonifying the spleen and benefiting the lungs. It is often used to treat symptoms such as loss of appetite, shortness of breath, cough and weakness. It should not be used together with veratrum and wulingzhi. It is also not recommended to take ginseng and Radix et Rhizoma Ginseng at the same time. Both ginseng and Radix et Rhizoma Ginseng have the effects of generating fluids and nourishing blood, tonifying the spleen and benefiting the lungs, and at the same time, it is easy to tonify the body too much. If you are not feeling well, it is recommended to go to the hospital in time and use the medicine under the guidance of the doctor, do not take it on your own.