Ways to improve the baby’s immunity, mainly including more outdoor exercise, vaccination, supplemental nutrition, etc., helps to enhance the body’s immunity. 1. Exercise: Regular participation in outdoor activities and increasing the amount of exercise can help improve immunity. 2. Vaccination: Vaccination is also an effective way to improve immunity, which can prevent the corresponding diseases. 3. Nutritional supplementation: usually pay attention to nutritional supplementation, combined with the baby’s condition to supplement foods rich in vitamin A, vitamin D, calcium, zinc and so on. It is recommended to eat a balanced diet, give a variety of fruits, vegetables, meat, eggs and milk, to ensure that three meals a day nutritional balance, reduce the intake of snacks, carbonated beverages. Normally, we should pay attention to the body to prevent cold and keep warm, avoid getting cold, which can reduce the occurrence of colds. If there is obvious discomfort, you can go to the pediatric internal medicine department of the hospital, combined with the doctor’s advice to give treatment.