Ginseng can be brewed and drunk. However, the effective dosage of soaking water is limited, and it is difficult to achieve the medicinal effect of ginseng, so it is recommended to follow the doctor’s instructions for medication. Ginseng is sweet, slightly bitter and slightly warm in nature. It belongs to the spleen, lung, heart and kidney meridians. It has the effects of tonifying the vital energy (replenishing the root energy of the body), restoring the pulse and fixing loss (restoring the normal pulse and preventing material loss), tonifying the spleen and lungs (tonifying the spleen and lungs), generating fluids and nourishing the blood (replenishing the body’s water and blood), and tranquillizing the spirit and promoting intelligence (stabilizing the mind and promoting intellectual development). It is used in treating deficiency of body, cold limbs and weak pulse, deficiency of spleen with little food, deficiency of lung with asthma and cough, thirst due to injury of fluids, thirst due to internal heat (internal heat accompanied with symptoms such as eating, drinking and urinating), deficiency of qi and blood, deficiency of long term illness, palpitation and insomnia, impotence and coldness of uterus, etc. It should be noted that the symptoms of solid and heat are not the same as the symptoms of heat. It should be noted that it is contraindicated in solid and hot cases, and should not be used alone for a long period of time in cases of yin deficiency, internal heat and abdominal distension.