If your baby’s fever starts again a few days after it has cleared up, it may be caused by your baby’s illness not being completely cured, or by a re-infection. Targeted treatment can be given according to the specific cause of the illness. If the baby is not cured of the disease for the first time, the parents may not give the baby the whole course of medication as prescribed by the doctor, thus causing the baby to develop fever again. In this case, it is recommended that the baby should drink more water and complete the whole course of treatment under the doctor’s guidance so that the child can be completely cured. If the baby appears to have fever again after the temperature has been normalized for more than 2 days, it is possible that the disease has been cured for the first time but is infected by the pathogenic bacteria again, so it will happen that the baby starts to have fever again after the fever has been cured. In daily life, you can adjust the child’s diet, supplement the child’s needs of nutrients, and timely medical care, improve the relevant examination, clear diagnosis to be targeted treatment. If the baby appeared after the fever well again fever, the interval time is more important, such as the interval time is short, mostly consider the disease course may be insufficient, such as the interval time is longer, need to be vigilant about the possibility of re-infection, specific should consult a doctor in a timely manner, in accordance with the doctor’s instructions to be targeted treatment.