Now comes the annual winter, due to the cold, the body’s immune function decreases, coupled with respiratory viruses, bacteria easy to invade, a little inattention will suffer from upper respiratory tract infections, bronchitis and pneumonia, etc.. The following are the main points of winter prevention and control of respiratory infections: 1. On the one hand, we should exercise cold tolerance, in good weather, more physical exercise outdoors, try to wash your face with cold water; on the other hand, pay attention to warmth, especially at work, study and rest to keep warm to prevent wind chill. Wash your feet with hot water before going to bed. 2, pay attention to indoor ventilation, because the winter is generally longer in the indoor time, therefore, to regular ventilation, keep the air fresh, 3-4 hours ventilation is more appropriate. 3, if you use air conditioning for heating, the temperature should not be too high, so as to avoid too large a temperature difference between inside and outside, while paying attention to the humidity of the indoor air, you can put a basin of water in the air-conditioned room. 4, eat more fresh fruits and vegetables, eat more warm food, such as beef and mutton. 5, pay attention to rest and keep sufficient sleep time. 6, preventive vaccination such as flu vaccine and vaccine, especially for people with low immunity: children, the elderly, pregnant women, diabetic patients, patients with chronic heart and lung diseases, tumor patients, AIDS patients, etc. Preventive vaccination should be used with caution for patients with allergies. 7. Reduce the number of visits to densely populated public places to avoid cross-infection. 8, pay attention to hand hygiene, wash hands regularly, do not pick your nose and rub your eyes with your fingers. 9, play the advantages of Chinese medicine, according to the principle of diagnosis and treatment, under the guidance of professional physicians to take supplements, but avoid blind supplements.