The term “fire” is actually a folk saying that belongs to the category of heat syndrome in Chinese medicine. In the theory of Chinese medicine, qi and blood in the human body are usually maintained in a state of dynamic equilibrium, once the balance is broken, the body may appear a variety of uncomfortable symptoms, and fire is one of them. Newborns are on fire because their bodies are delicate and their ability to regulate their bodies is limited. Common symptoms are: in the digestive system, manifested as constipation, dry stools, yellow urine; poor appetite, do not like to eat milk; dry lips, ulcers at the corners of the mouth; bad breath, exhaling hot; eye boogers, eyes red and swollen; hands, feet and heart hot; irritability, restless sleep, sweating; red anus; tongue red. Because the diseases of small children change relatively quickly and newborns are too delicate, it is not recommended to describe them with rough terms such as on fire, and it is not recommended for parents to use their own medication to avoid delaying the condition. At home, you can handle the following methods. Try to breastfeed, pay attention to the mother’s diet, do not eat spicy and stimulating food; if you drink milk powder, try to choose the right formula for your baby, if necessary, you can consider using hydrolyzed protein milk powder. Newborns try not to choose their own drugs, the child’s metabolic ability, liver and kidney development are still not perfect, poor resistance, the condition is not easy to limit, there is discomfort must be timely medical care.