Since children have poor resistance and low immunity, they are especially prone to bronchitis or pneumonia and other respiratory diseases. After contracting bronchitis, it is recommended to give children more foods rich in high quality protein, such as milk, soy products, egg whites, lean meat, etc. These foods can replenish the energy needed by the child’s body and also improve the body’s ability to resist disease. It is also important to eat more fruits and vegetables, such as apples and spinach, because they are rich in vitamins, which can also improve the immunity of the organism. For children with low immunity, you can also take medicines to improve immunity, such as splenamine-based oral lyophilized powder, etc.