Lotus leaf, cassia seeds, poria is not recommended to drink more. The combination of the three medicinal properties of cold, excessive, long time to take, will affect the spleen and stomach yang qi, drink in moderation, there is a certain clearing heat and dampness, spleen and tranquility effect. Lotus leaf is bitter in taste and flat in nature. It belongs to the liver, spleen and stomach meridians to clear summer heat and remove dampness, elevate clear yang (conveying nutrients from digested food to the head and face), cool blood and stop bleeding, and is often used in the treatment of heartburn, insomnia, diarrhea, vomiting and epistaxis, and thirst, etc. Its adverse effects and contraindications have not yet been clarified. Cassia seed is sweet, bitter, salty and slightly cold in nature, with the efficacy of moistening the intestines, clearing heat and brightening the eyes. It is often used in treating symptoms such as redness and astringency of the eyes, shyness and tearfulness (fear of light in the eyes and frequent tearing of the eyes), headache and dizziness, darkness and uncertainty of the eyes, and constipation of the bowels. It is not recommended for people with Qi deficiency and loose stools (thin and unformed feces). Its adverse effects are not known. Poria cocos is sweet, light and neutral in nature, with the effects of inducing diuresis and seepage of dampness (promoting the flow of water to dispel dampness), strengthening the spleen and tranquilizing the heart. It is often used in the treatment of oedema and urinary retention, phlegm-drinking vertigo and palpitation (vertigo and palpitation due to phlegm-drinking and evil qi upstream), spleen deficiency with low food intake, loose stools and diarrhea, restlessness of the heart and mind and palpitation and insomnia. Its adverse reactions and contraindications have not been clarified. The combination of the three has the effect of clearing away heat and dampness, strengthening the spleen and tranquilizing the mind, but the medicinal properties are inclined to the content, which can easily affect the yang qi of the spleen and stomach when taken for a long period of time on its own and in excessive amounts. Tea drink efficacy is limited, can not replace the drug treatment of disease, if the body is not feeling well, it is recommended to go to the hospital in a timely manner.