If a 9-month-old child catches a cold, complementary food can allow the baby to eat more fresh fruits, such as apples, bananas, dragon fruit, watermelon, etc., which can be fried into juice for the child to supplement. Loss of appetite. Reluctant to eat some staple foods. Especially let your baby drink more water. Let your baby eat less raw, cold and hard-to-digest food. Drinking more water can promote the body's metabolism, promote the excretion of toxins, and also facilitate perspiration.