The lungs are in charge of the skin and hair, meaning that the lungs transport fluids and substances to the skin and hair through the role of Xuanfa; the lungs open the orifices of the nose, meaning that the ventilation and respiratory function of the nose depends on the role of the lung qi. According to Chinese medicine, the skin and hair refers to the surface of the body, is the most superficial layer of tissue, is a barrier against external evil. Lung main hair refers to the role of the lungs through its declared purging, the fluid and other nutrients transported to the skin and hair, in order to achieve the role of nourishing the skin and hair, the lungs are sufficient to have glossy hair, the evil is not easy to invade the organism. Lung orifices in the nose means that the nose ventilation and normal olfactory function, mainly dependent on the role of the lung gas, lung gas and, then breathing fluent, sense of smell in order to maintain normal. The nose is the channel of the lungs, is the main pathway of the lungs invasion of foreign evils, foreign evils invade the lungs and guards, more by the nose and mouth, so when the foreign evils attack the lungs, the lungs do not pronounce the air, there will often be nasal congestion, runny nose, sneezing and other uncomfortable symptoms.