Traditional Chinese medicine believes that American ginseng is cold in nature and slightly bitter in taste. It acts on the lung and spleen meridians, and has the effects of invigorating qi and nourishing yin, clearing away fire and relieving annoyance, promoting fluid production and quenching thirst. Commonly used for chronic cough due to lung deficiency, dry mouth and throat, upset and insomnia, limb weakness, blood loss and shortness of breath. Excessive bleeding in gynecological diseases, such as functional uterine bleeding, postpartum hemorrhage, hysteromyoma, internal heat due to yin deficiency, menopausal symptoms such as thirst, insomnia, irritability, etc. After operation, radiotherapy and fire therapy for cervical cancer, uterine cancer and ovarian cancer, due to internal heat due to yin deficiency, fluid injury, thirst, red urine and bloody stool, American ginseng can be used for treatment. If patients with coronary heart disease suffer from deficiency of both qi and yin, palpitation and shortness of breath, fatigue and dry throat, they can take American ginseng every day, and the long-term effect is very good. Although American ginseng is unique in treating diseases and keeping fit, it also has contraindications. Chinese medicine believes that people with insufficient yang and cold and dampness in the stomach should not take it. For example, pale face, edema of limbs, chills, slow heartbeat, loss of appetite, nausea and vomiting, abdominal pain and bloating, thin and thick tongue coating, male impotence, premature ejaculation and nocturnal emission; American ginseng is prohibited for women with frigidity, dysmenorrhea, amenorrhea and excessive leucorrhea. Children with developmental retardation and indigestion should not take American ginseng. People who have a cold, cough or acute infection with damp heat should not take American ginseng. American ginseng belongs to the same plant and has the function of invigorating qi, but after all, its medicinal properties are different from those of cold and warm. Moreover, American ginseng is not as powerful as ginseng, and it is better for shock or hypotension. Don't drink tea or eat radish during taking, so as not to affect the nourishing effect.