The baby's umbilical hernia had healed for two months but reappeared, indicating that the umbilical ring has not closed and the hernia has not completely healed. Therefore, in daily life, it is important to minimize the child's crying, tantrums, and vigorous exercise, and avoid getting cold or sick as much as possible to prevent severe coughing. Attention should be paid to the intake of foods rich in vitamins and cellulose, such as fresh vegetables and fruits. Drink plenty of water, maintain smooth bowel movements, and follow a light diet. Avoid eating cold and spicy foods.