Although American ginseng has a good nourishing effect, it is not suitable for everyone to take it, nor does it improve immunity immediately after eating it. It takes a process from taking it to producing an effect in the body. Although American ginseng is suitable for a wide range of people, it will be counterproductive if it is not used in the right way. Chinese medicine believes that American ginseng is a cold medicine, and it is necessary to replenish qi and nourish yin. If the body has fever, such as dry mouth, irritability, palm fever, redness, frequent fatigue, etc., the use of American ginseng tonic can achieve the purpose of conditioning. On the other hand, if you cough with phlegm, saliva or edema, you should avoid taking American ginseng, otherwise it will aggravate your condition. In addition, "don't make up." If you are not unwell, don't take American ginseng buccal tablets often. In addition, American ginseng is not conducive to dampness, and seasonality should be considered when taking it. The dry climate in spring and summer is more suitable for taking American ginseng, but it is not suitable for taking ginseng or red ginseng. It is more suitable to take ginseng in autumn and winter. Panax quinquefolium contains a component called ginsenoside, which has the function of improving human resistance. Therefore, people with weak constitution, such as the elderly, seriously ill patients, etc., often taking American ginseng can play a certain role in strengthening the body; And some patients with chronic diseases, such as patients with chronic hepatitis B, taking American ginseng will also be beneficial to the control and improvement of the disease; For those with intestinal heat and bloody stool, according to Lei Ju Fang Yao, western countries participate in steaming longan meat, which has the effect of clearing intestine and stopping bleeding. Compared with ginseng, American ginseng is much milder in invigorating qi, not as warm and dry as ginseng, so there is no special requirement in quantity. It contains 4 ~ 6 tablets a day, which is equivalent to no more than 5g of crude drugs, and generally does not produce side effects. In the way of eating, we should pay attention to: it is best not to take it with strong tea or coffee, so as not to reduce the efficacy; Be sure to drink plenty of water; Don't take it with other drugs. In addition, some people with cold and heavy stomach should not take it.