Babies often appear the following phenomena: dry skin, red; mouth and tongue sores, dry red around the mouth, corners of the mouth erosion, breath; eye secretions suddenly increased; dry stools, urine short yellow; sleep unstable. This definition is not accurate, in fact, it is not really “fire”, because the body does not have enough water, Chinese medicine is called “Yin deficiency”, “insufficient fluid”. “fluid deficiency”, or call it “dryness”, “false fire on the inflammation”. Especially in autumn and winter, the climate is dry, coupled with the use of air conditioning in winter, the baby’s tender skin and organs can not adapt to the dry indoor environment, often manifesting dry evidence. Dryness is easy to hurt Yin, and it is easy to be transformed from fire. In addition, children have a “pure Yang body” and a hot body, so they are prone to Yin injury and fire. To prevent the above, parents can pay attention to the following aspects: ① drink more water, eat more apples, pears, grapefruit and other watery fruits; ② eat more sweet and sour food, such as hawthorn, sour plum, sour and sweet can transform yin, less pepper, chili, leek, onion, garlic, ginger and other spicy stimulating food; ③ eat more cool fresh vegetables, such as cabbage, celery, lettuce, wild rice, lotus root, eggplant, lily, bitter melon, etc. ④ you can give your baby some mung bean and lily gravy porridge, black sesame walnut paste, etc.; ⑤ a reasonable food mix, not too warm, too much supplementation of beef, lamb, dog meat, milk, etc., all belong to the hot food.