According to the Chinese medical experience, the oxalis has the effect of tonifying the kidney, benefiting the blood and strengthening the yang, while the ginseng has the effect of strengthening the immunity and activating the qi and blood. On the surface, the two seem to enhance the efficacy of the use, but in fact, the two combined use, the efficacy of the force is too strong, there may be a weak body to do harm, so it is recommended that the two brewing or can be avoided.