2. The second one, with the effect of calming the liver and clearing heat, is used to treat diseases such as weakness of the liver and kidney, or hyperactivity of liver and Yang. The third one, with the effect of diuresis and elimination of dampness, can be used for the treatment of swelling caused by unfavorable urination. The fourth, with the efficacy of condensing the heart and calming the mind, is used to treat neurasthenia and other brain diseases.