Ophiopogon japonicus has the effects of nourishing yin, promoting fluid production, moistening lung and clearing heart-fire. It can be used for lung dryness, dry cough, fatigue cough, vexation and insomnia, thirst due to internal heat, constipation due to intestinal dryness. Lily has the effects of moistening lung, clearing fire and calming the nerves. Sydney is sweet and cold, and contains malic acid, citric acid, vitamin B 1, B2, C, carotene and so on. Has the effects of promoting fluid production, moistening dryness, clearing away heat and resolving phlegm.