Acute upper respiratory tract infections are very common and everyone has one or more episodes in their lifetime, the onset of which is closely related to the patient’s own resistance. So in daily life should pay attention to the regular diet, moderate exercise, can play a certain preventive role. Specific preventive measures are: 1, moderate exercise pay attention to rest, according to the condition of the arrangement of appropriate activities, so that patients do not feel fatigue, do not aggravate the symptoms as appropriate, while indoor should maintain the appropriate temperature, humidity, winter should pay attention to keep warm, avoid direct inhalation of cold air, while going out to pay attention to add clothing to prevent cold and cold; 2, avoid passive smoking, that is, second-hand smoke, avoid smoke, chemical substances and other harmful physical and chemical factors Avoid passive smoking, i.e. second-hand smoke, and avoid stimulation by smoke, chemicals and other harmful physical and chemical factors; 3. Drink more water and eat a light, nutritious and easy-to-digest diet; 4.