Hello: Lotus leaf has the effects of clearing away heat and relieving summer heat, promoting diuresis and infiltrating dampness, strengthening spleen and strengthening yang, removing blood stasis and stopping bleeding; Lycium barbarum has the effects of nourishing liver and kidney and improving intelligence; Honeysuckle has the effect of clearing away heat and toxic materials; Gardenia jasminoides Ellis has the effects of purging fire and detoxicating, clearing away heat and promoting diuresis, cooling blood and stopping bleeding; Lotus leaf, medlar, honeysuckle and gardenia are soaked in water, which has the effects of clearing away heat and toxic materials and nourishing liver and kidney.