1, during the epidemic period, do not take children to crowded, turbid air in public places, and do not let children contact cold patients. 2.When family members have a cold, do a good job of isolation, often open the windows to keep the indoor air fresh and clean circulation. 3, home diligent ventilation, keep the air fresh. 4.If the weather is bad, such as cold, heavy rain, wind and foggy days, try to indoor activities. 5.Actively exercise and participate in sports activities. 6, in the season of climate change, parents should strengthen the care of children, according to climate change in a timely manner to increase or decrease clothing. Because of the active, easy to sweat, do not wear too much clothing, especially not according to the standards of adults, especially the elderly, but should be appropriate, appropriate temperature adjustment. 7, a light diet, should not be too sweet and greasy things.