Wind-cold cold is caused by the external attack of wind-cold evil and the loss of lung qi promotion. In common parlance, it is often referred to as cold and flu, which is a series of uncomfortable symptoms caused by the dysfunction of the lung health due to external wind and cold. The so-called cold flu refers to pain or tightness all over the body, increased body temperature but obvious fear of cold, runny nose, no dry mouth, no sore throat or mild sore throat, white and thin sputum, stomach pain and bloating that is aggravated by cold, and loose stools. The symptoms are body aches and pains, stuffy and runny nose, and phlegm from wind-heat colds. Cold and flu is a self-healing disease, usually within a week, if the disease is mild, the patient’s body will heal itself without treatment, but serious cases need to be treated. Treatment, Western medicine, Chinese medicine can be used, but also the use of food therapy, not only to get rid of the disease, but also health care. Preventive measures are to keep warm, strengthen physical exercise, improve immunity, and also to take preventive shots in advance. The common causes of wind chill cold are as follows. 1, sudden changes in climate external environmental changes, the first cold and warm, hot and cold disorders, or as the southerners moved north, the climate does not adapt, the body failed to adapt to the changes in the external environment, it may be triggered by the evil wind-cold cold. If it belongs to the epidemic virus for the time, more caused by widespread epidemic. 2, improper life and living self such as changing clothes and taking off the hat, because of the desire to cool and sleep in the open, often blowing fans freezing air conditioners, braving the wind and rain, or excessive fatigue, do not pay attention to rest, it will lead to the muscle coup not dense, Yingwei loss of harmony, external evil attack. 3, overwork, physical exhaustion The body is depleted, the muscle coup is not dense, the external guard is not solid, feel the external evil. 4.Weak constitution Weak constitution, weak vital energy, and unsolidified body surface, if one is not careful, it is easy to feel evil. For example, those with Yang deficiency are susceptible to wind and cold, and those with Yin deficiency are susceptible to dry heat. Clinically, it is called a deficiency cold. 5, the lung has a persistent evil The lung meridian has phlegm and heat, or phlegm and dampness, the lung guard regulation function is reduced, it is easy to feel external evil, internal and external lead to the disease. Clinically, it can be seen that the internal heat and external cold – cold fire and other miscellaneous symptoms.