The functions of wolfberry: nourishing the liver and kidneys, improving eyesight; the functions of plantain: clearing away heat, removing dampness, diuresis and treating stranguria. The functions of dandelion: clear away heat and detoxify, eliminate carbuncle and dissipate stagnation, diuretic and relieve stranguria; the functions of red dates: nourish the body and nourish qi, nourish blood and calm the nerves, and moderate the medicinal properties; these can be used together to clear away heat, detoxify and nourish the body. It nourishes qi and blood and nourishes yin, dilutes water without damaging righteousness, and is good for the body.