Fever in children at night is a very normal sign of illness. First of all, the body functions of children tend to stabilize at night and are not as active as during the day. During the daytime, the body’s metabolic rate is often higher, the resistance is stronger, and the liver’s detoxification function is more active, so in the event of a viral or bacterial infection or other disease factors, it is often less likely to lead to disease. But at night when the resistance is weaker, it is easy for disease to occur, and it shows up as a fever. Secondly, at night the child’s body temperature is originally slightly higher than during the day, especially to be slightly higher than in the morning, once the temperature rises, it is also easier to show, and adults are more likely to find. The treatment is the same as for daytime fever, you need to take the temperature and make sure that the child’s body temperature is below 38.5℃. Once the temperature exceeds 38.5°C, treatment with oral antipyretics, such as ibuprofen suspension, is required.