An 8-month-old baby with a fever of 38.5 degrees needs to be given fever-reducing medication immediately, otherwise the child is prone to febrile convulsions, which are relatively small and can produce irreversible damage to the child’s brain cells once they occur, which is still relatively dangerous. In addition, you need to give your child a combination of physical cooling methods, such as using diluted white wine or alcohol, wipe the child’s leg sockets, palms and feet, to help reduce the child’s fever, but also to reduce the use of antipyretic drugs and the interval. Generally, you can choose ibuprofen suspension or acetaminophen pellets, which can be used according to the child’s weight and in accordance with the instructions, and you can repeat the medication once after an interval of 4-6 hours, and not more than 4 times a day.