If a one-year-old baby has a fever of 38.5℃, but is in good spirits, he can directly take physical cooling first, which can be given by using antipyretic paste, wiping with warm water or taking a hot bath, while drinking more water, which can play a very good role in reducing fever. If the child’s temperature does not decrease but increases after 1-2h of physical cooling, you can take oral antipyretic drugs or use antipyretic suppositories, choose acetaminophen or ibuprofen components can be selected, after 1-2h application of antipyretic drugs combined with physical cooling when the child’s temperature drops, you can continue to observe. If the child’s temperature rises or if the child begins to have poor peripheral circulation such as cold hands and feet, it is necessary to take the child to the hospital urgently for further examination. Since children are small, they are prone to febrile convulsions and seizures. It is necessary to go to the hospital to clarify the cause of the fever after detailed examination by a doctor, so that the cause can be further treated and the most appropriate antipyretic method can be selected according to the child’s temperature.