Grapefruit is fragrance, sour, irritating, nutritious and of high pharmaceutical value, and is one of the fruits with therapeutic effects. The aroma is sour, typhoid, which has the effect of aerobics, pneumatic intestine and spleen spleen, which treats such diseases as low diet, abdomen, digestive indigestion, smoothing of grapefruit skin, de-oiling, burning of fire, long-term eating and beauty. The old ice of the Guangxian ecology, which has not been bleached by sulphur dioxide, is also of medicinal value, so that it can fertilize and improve its pulmonary cough, both of which are cooked together with a little bit of bitterness in the sweetness of the mouth, but the effect on the control of cough, the decomposition of the pulmonary aromatic aromatics and the cleaning of the fire gas is significant