Internal heat is a conceptual category in TCM, which refers to the symptom of self-consciousness of heat in the body, while the actual body temperature does not rise. TCM believes that children are pure Yang bodies, with vigorous growth and development and vigorous vitality. For this reason, during the onset of the disease, yang energy develops and is susceptible to fever, and yin and fluid are easily injured, so the manifestation of internal heat can easily appear. The common symptoms of internal heat in babies are mainly focused on body heat and heat accumulation in the stomach and intestines. Symptoms such as bad breath, hot breath, hot hands and feet, hot to the touch but normal body temperature, good irritability, sweating, dry stools, yellow urine, red tongue, yellow or greasy or thick tongue coating, and dry lips and mouth. Since the performance varies, so it needs to be targeted for conditioning. 1, gastrointestinal heat: It is recommended to have a light and easily digestible diet, maintain a certain level of hunger appropriately, drink more water, give digestive foods such as hawthorn, yam, etc., add dietary fiber, avoid picky eating, ensure normal bowel movements and empty the stool as much as possible. 2. No obvious symptoms of body heat: pay attention to a light diet, drink more warm water, and increase fruits and vegetables appropriately. Do not eat spicy, fried and other stimulating food. It should be noted that raw and cold food should also be given to children as little as possible. Children’s bodies are delicate and have limited ability to regulate their bodies, and the disease is prone to change and is likely to develop rapidly into hyperthermia, so you should pay attention to your child’s performance and seek medical attention promptly when you find abnormalities, and do not use drugs indiscriminately by yourself to avoid covering up and delaying the disease.