According to academic records, lotus plumule and lotus leaf have the functions of clearing heart fire, calming liver, purging spleen and lowering lung, clearing away heat and nourishing heart, lowering blood pressure and diuresis, astringing fluid to stop sweating, stopping bleeding and fixing essence. "Lotus leaf slimming makes people thin and feel inferior." China has regarded lotus leaf as a slimming medicine since ancient times. At present, the hospital still allows obese patients to drink lotus leaf tea. Chrysanthemum is slightly cold, sweet and bitter, and has the functions of dispelling wind and clearing heat, calming the liver and improving eyesight. It is mainly used for treating common cold, wind-heat, headache, conjunctival congestion, toxic swelling and hyperlipidemia. Huang Ju is used for dispelling wind and clearing heat, and chrysanthemum is used for calming the liver and improving eyesight. Rose has the functions of regulating qi, promoting blood circulation, soothing the liver and relieving depression, and is mainly used to treat diseases such as liver and stomach gas pain, anorexia, vomiting, irregular menstruation and traumatic injury. Hawthorn tastes sweet and sour, and has the effects of stimulating appetite, promoting digestion, resolving stagnation, promoting blood circulation and removing blood stasis, and stopping dysentery.