The low fever after one day of fever reduction may be related to the fact that the disease has not yet recovered or there are complications. 1. not recovered: if a child’s fever is low for a day, it indicates that the disease has not been completely cured, and the phenomenon of recurrent fever will occur, usually due to viral, bacterial, mycoplasma and other infections caused by fever, some of which may last for 5-7 days, so there is a fever and then a low fever, you can symptomatic treatment. 2. Complications: low fever after fever may have other complications, resulting in low fever after fever, need to find out the cause of the disease, in order to have a better therapeutic effect. There may be other reasons for a low fever after a day of fever reduction, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor’s treatment.