4-year-old baby cold, in general, need to eat more water content, nutrient-rich, easy to digest and absorb meals, such as millet porridge, rice porridge, corn porridge, red bean porridge, mung bean porridge, cooked noodles, etc., as well as more brightly colored vegetables, such as cabbage, oil cabbage, spinach, kale, cucumber, tomatoes, zucchini, lotus root and so on. You can also make some porridge by special cooking means, such as green vegetable porridge, lean meat porridge, etc. Don’t eat spicy and stimulating, cold and boiling hot food. These dietary measures are very favorable to the relief of cold symptoms.