What is the reason why the baby has a fever and has a fever repeatedly?

The baby has a fever and fever repeatedly, and bacterial virus infection, mycoplasma infection and chlamydia infection and other factors, this situation may also be because the disease has not recovered. After fever and fever, it is recommended to go to the hospital in time to check blood routine, clear the cause of disease, follow the doctor's advice to give the baby the use of antipyretic drug treatment.