Babies with high fever and cold hands and feet is called external cold and internal heat, fever is more serious, abnormalities in body temperature regulation occur, you need to use hot water to soak the hands and feet or use hot water bags to cover the hands and feet, so that the hands and feet warm up. After the blood circulation is good, it will help the body to dissipate heat, and the fever can be relieved. It is also necessary to take fever-reducing drugs at the same time. It is recommended to take oral ibuprofen suspension or acetaminophen pellets to reduce fever, and ibuprofen suspension is recommended for faster and stronger effect. In addition, it is necessary to combine physical cooling methods, such as putting a fever-reducing patch on the child’s forehead, which is not very effective in reducing fever but has the effect of protecting the child’s brain function. Children under three years old should preferably also take antelope horn granules to effectively prevent the occurrence of febrile convulsions.