Chrysanthemum coronarium is a vegetable, which is rich in vitamins and nutrients, so it is called the emperor’s vegetable. Chrysanthemum coronarium is flat and sweet in nature, and belongs to the liver and kidney meridians. Its function and efficacy are: 1. Chrysanthemum coronarium has the effect of clearing blood and nourishing the heart, moistening the lung and resolving phlegm, as a vegetable with lubricating effect, proper consumption has the effect of clearing the heart, moistening the lung and resolving phlegm, lowering blood pressure and facilitating urination; 2. And it can remove the local itchiness, also can resolve phlegm and cough, block the cough reflex, and can dilute the inflammation of the respiratory tract and secretion of sticky mucus, so that it can be easily coughed out, which is conducive to cough and expectoration, and is more suitable for patients with strong cough and phlegm; 4. Chrysanthemum contains diuretic ingredients, which can eliminate excess sodium retention in the body, has a diuretic effect on swelling, and can remove toxins and It can remove toxins and excess water from the body and promote the metabolism of blood and water, which is more suitable for patients with edema and unfavorable urination. 5. Chrysanthemum coronarium is rich in potassium ions and can nourish, moisten the lungs, remove fat, regulate metabolism, activate blood circulation and remove blood stasis, which can be a good treatment for patients with dry lungs, lung heat and respiratory tract disorders. 6, It can have a laxative effect on patients with high liver fire, eye secretions, irritability and high blood pressure. 7, the contraindications of Chrysanthemum coronarium: people with weak spleen and stomach should use it sparingly or avoid eating it.