When a child has a cold, the diet should definitely be light, offering easily digestible foods. If the baby does not have a fever, eggs can be consumed in moderate amounts as they provide a rich source of protein, phospholipids, vitamins, and other nutrients. However, if the baby has a fever, it is best to avoid giving them eggs because eggs are relatively hard to digest and rich in protein and phospholipids, which can increase the burden on the gastrointestinal tract. Additionally, a fever can affect digestive functions, which is not conducive to the baby's recovery. Therefore, it should be determined based on the situation.