Children with poor resistance should pay attention to diet, exercise and other aspects of conditioning, pay attention to maintain the supply of nutrients, you can let the child to eat more high-calorie, high-nutrition food, such as eggs, dairy and lean meat food. Also to maintain the diversity of nutrition, but also to eat more fruit, it is best to juice and heat the fruit after drinking, not only can increase the intake of vitamins and trace elements, but also not because of the intake of too much cold fruits and gastric discomfort, is conducive to the digestion of the spleen and stomach, absorption. Also pay attention to more exercise, you can engage in long-distance walking, jogging and other sports, is conducive to exercise lung capacity and muscle joint growth, thus promoting the rapid recovery of the body’s immune system. If you still can’t recover your immunity through various aspects of conditioning, you can also take oral immunity-enhancing drugs, such as chaste astragali Fuzheng granules.