The fact that the child has a fever at night and is fine during the day indicates that the disease itself is not very serious. If the disease is very serious, the child will have repeated fevers several times in a 24-hour day. Simply being fine during the day means that the child is eating, playing, and eating during the day, all of which are conducive to heat dissipation from the skin and can ensure that the temperature is at a normal level. However, at night when the child is sleeping, less activity, less heat dissipation from the skin, not eating, not drinking, etc. will affect heat dissipation, so the child is usually more likely to have a rising temperature and fever at night. Depending on the child’s temperature, if the body temperature is ≥38.5℃, antipyretic drugs can be applied for treatment. If the state of low fever is low, physical cooling such as wiping with warm water can be taken.