For children with frequent colds and coughs, the main ways to improve immunity include more exercise, food regimen and vaccines. 1. Exercise: Exercise is a better way to improve immunity, more exercise, such as running, swimming, playing ball games, etc., to promote metabolism, while promoting the development of the child, improve immunity. Exercise is a good way to improve immunity. 2. Food regulation: to improve the child’s immunity need to ensure that the child’s daily diet can provide sufficient nutrition. In daily life, you can eat more fruits and vegetables to supplement vitamins, such as broccoli, green vegetables, tomatoes, apples, bananas, etc.; at the same time, you also need to eat more meat, eggs, dairy food to supplement protein and trace elements, such as chicken, pork, eggs, milk and so on. Maintain a balanced nutrition. 3. Vaccine: children with low resistance should be vaccinated in time, such as influenza vaccination, which can play a good preventive role for influenza. When physical discomfort occurs, it is necessary to actively consult the doctor and follow the doctor’s instructions for reasonable treatment.