The so-called lung heat, the patient’s main manifestations for coughing, coughing yellow sputum, nasal congestion, yellow nasal discharge, wheezing, heartburn, dry stools and so on. Lung heat consumption of cold fruits can be, the general color of white, green fruits are cold fruits, such as pears, water chestnuts, sugar cane, watermelon, all belong to the cold fruits. Eat cold fruits, on the one hand, can clear heat and fire, on the other hand, can also quench the thirst, the production of fluids, nourishing Yin, is very suitable for patients with lung fever to eat a class of fruits.