Analysis of illness: dandelion can clear away heat and toxic materials, and it has a certain curative effect on lung heat cough and bloated ulcer. Lycium barbarum can nourish liver, improve eyesight and tonify kidney, while Schisandra chinensis can astringe yin, replenish qi and astringe astringency. There is no drug compatibility taboo among them, but soaking dandelion and Lycium barbarum in water together may reduce their medicinal properties, so it is recommended that you don't drink them in water together.