Chrysanthemum and Sophora japonica have the function of clearing heat, and green tea Lycium barbarum also has the function of clearing heat and nourishing yin. These herbs together have the effect of clearing away heat and nourishing yin. If you usually have symptoms of yin deficiency and excessive fire, such as dry mouth, dry throat, red eyes and thin tongue coating, you can take these drugs for conditioning. If you are not sure about the syndrome type, it is recommended to go to the Chinese medicine department of the hospital for confirmation before taking it.