There are many tonic herbs. Chinese medicine believes that tonic herbs are mainly for deficiency, such as tonifying qi, yang, blood and yin, etc. Commonly used ones are ginseng and American ginseng, as well as dang ginseng, astragalus, atractylodes, hippocampus, cuscuta, and cordyceps, rehmannia, maitake, chasteberry, wolfberry, etc. These are all tonic herbs and need to be applied reasonably under the guidance of a doctor. The application of tonic medicine is mainly for the weakness of the body to regulate, such as bedridden patients, patients after surgery, as well as patients who have recovered from a serious illness and elderly patients, these are suitable. It is best to apply tonic medicine together with medicines to strengthen the spleen and stomach so that the tonic medicine can be well absorbed by the body without stagnating in the body and producing dampness, which can have additional side effects on the health of the body.