Wash the kumquat, take two or three in its center to cut a bite (do not cut off), and then put into a cup, and add a little rock sugar to boiled water can be brewed. The kumquat has the effect of regulating qi, resolving phlegm and relieving cough. If kumquat is brewed with honey, cover and simmer for a few minutes before drinking. This drink consists of kumquat and honey that tonifies the middle, moistens dryness, relieves pain and detoxifies the toxin, which has the effect of regulating qi and relieving depression, moistening the lung and resolving phlegm. It is suitable for chest tightness and depression, lung irritability and dry cough, prolonged cough of deficiency labor, thirst, food stagnation and stomach stagnation and other diseases.