Due to the recent high and low temperatures, sometimes the temperature varies even by several degrees in a day. Due to the lower immunity of children, the uneven hot and cold weather can easily induce common childhood diseases such as cold, fever, asthma and seasonal nasal allergy. Parents should pay attention to temperature changes and health care, and add and remove clothes for children in time. Since spring is the best season for bacterial reproduction, parents should pay attention to the environmental hygiene of the family, unclean clothes and blankets easily hide fine dust and mites, and children with asthma and nasal allergy and other diseases should avoid contact. Children should not go to school once they are sick to prevent cross infection. To prevent children from getting sick, improve their health and reduce illness, you can start from the following aspects: 1. balanced diet. Children are not picky about their food, do not boil bone broth every day, do not be too greasy, eat more vegetables in order to strengthen the body resistance. 2, to ensure sleep. Most of the child’s body growth at night, the child sleeps deeply at night, all kinds of organ cell repair is good. The child’s height and weight growth is normal. 3, appropriate exercise. Exercise can speed up the metabolism, through sweat to discharge the body fatty acids, uric acid and other excess metabolic products. Exercise can enhance the child’s physical fitness. 4, drink more boiled water. Water is the source of life. Drinking water can cleanse the intestines, replenish water and speed up the elimination of toxins from the body in the urine. 5, add and remove clothes. With the season, add or remove clothes at the right time. Maintain good hygiene habits, wash your hands before and after meals. Bathe and change clothes regularly to reduce skin diseases. 6.Open windows for ventilation. Open the windows 1-2 times a day, 15-20 minutes each time. A week with edible vinegar or moxa fumigation room air disinfection, can effectively reduce respiratory diseases. Through the above six practices, you can reduce the chances of your child getting sick.