chrysanthemum: clearing fire and relieving summer heat. Lycium barbarum: invigorating qi and strengthening kidney. Jujube: blood, qi and stomach. Cassia seed: improving eyesight, clearing liver, nourishing brain and strengthening bones and muscles. Brown sugar: promoting blood circulation, strengthening spleen, warming stomach and dispelling cold. In the hot summer, brown sugar should be used less (I suggest you use white sugar), chrysanthemum should be used more, medlar should be used more, red dates should be used more, and cassia seed should be used in moderation (if used more, there will be a phenomenon that deficiency will not be supplemented). Chrysanthemum: Lycium barbarum: red dates: cassia seed =2:1:1:1 (depending on personal hobbies, this data is for reference only). 1mL water can be added with 2ml, 1ml, 1ml and 1ml at a time.