If your baby has recurrent colds and fever, it is likely to be caused by low immunity. Normally, you should pay attention to enhancing your baby’s immune function, eat more nutritious and high-calorie foods, strengthen your body, and exercise more, which is conducive to the recovery of immunity. Can also be appropriate to use to enhance the immune function of the drug, such as thymus peptide, transfer factor oral solution, etc., for the improvement of low immunity caused by colds, fever can play a role in alleviating. Normally, we should also pay attention to improve the diversity of diet, such as a wide range of food intake, eat more fruits, vegetables and a variety of foods rich in vitamins and trace elements, which is conducive to the body’s physical strength and immune function recovery. As the baby grows older, the symptoms of low immunity can be relieved.