The snotty nose belongs to the wind-cold cold. Wind cold, that is, because of the cold wind caused by the cold, wind heat, is what we call hot, mostly in the hot summer, is also a cold. Wind-cold cold is generally caused by cold runny nose, white sputum; wind-heat cold is mainly caused by internal heat, generally yellow snot, sore throat, etc..　　There are three reasons why children often catch a cold One is that the child's physical condition is poor, such as suffering from chronic inflammation of the upper respiratory tract, malnutrition or rickets, etc., the resistance to disease decreases, easy to catch a cold. Usually lack of exercise, seldom to the outdoor activities of the child, poor physical condition, also easy to catch a cold.　　Second, the child's living room and living environment. Surveys show that children are more likely to catch colds in homes with low room temperatures or poor indoor and outdoor sanitation.　　Third, the child's parents or other relatives of the infection. Parents or other relatives who have a cold and often come into contact with the child will pose a threat to the child and make the child susceptible to catching a cold.　　If you can identify the causes and take appropriate measures to eliminate them, you will prevent your child from catching colds from time to time. For children with inflammation of the upper respiratory tract or other illnesses, it is important to treat them promptly and thoroughly. For children who are less active and seldom go outdoors, the amount of time they spend outdoors should be gradually increased from summer to fall to strengthen their physical fitness. When the indoor temperature of the family or child care center is too low or the temperature difference is too big, conditions should be actively created to improve the living environment of the children.　　When someone in the family has a cold, he/she should isolate himself/herself and avoid contact with the children, so as to beware of transmitting the cold to the children. For children who often suffer from colds, they should take appropriate vitamin A supplements, such as oral cod liver oil drops or cod liver oil capsules, and eat pig liver, carrots, tomatoes and other vitamin A-rich foods.　　Baby a cold, parents are always very nervous, here, experts suggest that parents in the daily care can be appropriate to use the following methods: 1, cold water wash face, hot water foot soak method: daily morning and evening to develop a cold water bath face, hot water foot soak habit, which helps to improve the body's ability to resist disease, "Royal cold outside the skin" is the reason; 2, Physical fitness method: in the fall and winter should be moderate outdoor walks, playing ball, gymnastics ...... this can improve the body's ability to protect against the cold, to prevent the occurrence of colds; 3, drinking ginger tea method: ginger, brown sugar in the right amount of boiled water instead of tea, can effectively prevent and control colds; 4, dietary prevention and treatment method: the principle of diet in the fall, traditional Chinese medicine believes that: each of the five flavors have different effects, and has a close relationship with the five viscera, and the five organs. Role, and the five organs have a close relationship, there are five flavors to the five organs said. Climate change in the four seasons, the human body physiological and pathological changes have a certain impact, therefore, due to the symptoms, people, places and times of meals is to ensure that the fundamental scientific diet.　　Finally, nutrition experts recommend: dry climate in autumn, so late autumn and early winter can be appropriate to take white fungus, sesame, honey, rock sugar, pears and other foods to nourish yin and moisten dryness. In addition, experts also provide a special dose of suitable for infants and young children to prevent colds and colds of small recipes, mnemonic: a handful of glutinous rice boiled into soup, seven onion roots seven pieces of ginger, boiled into half a bottle of vinegar, prevention of colds and colds to protect Pingkang.