2. Materials: chrysanthemum, cassia seed, medlar, licorice, honeysuckle and mulberry leaves. Practice: Take chrysanthemum 1g, cassia seed 3g, wolfberry 3-5 pieces, licorice 1g, honeysuckle 1g, mulberry leaf1g; Rinse all raw materials with cold water; Put the washed raw materials into a cup and inject 300 ml of boiling water; It can be drunk after brewing for 3-5 minutes, and 3-5 cups of water can be brewed by adding raw materials at one time.