When a baby has a persistent low fever, it is important to actively search for the cause and treat the cause while paying attention to lowering the body temperature. Parents can refer to the following methods to lower the temperature of the baby. 1, reduce clothing: fever, remember not to give the child too much clothing, cover too thick quilt, this method of covering sweat is not conducive to heat dissipation to reduce fever, but will lead to fever convulsions due to overheating, for many infants as long as the reduction of clothing can make the body temperature lower. 2, drink more water: this will help sweat heat, can make the body temperature drop and replenish and the water lost in the body. It can accelerate the body’s metabolism, which is conducive to the discharge of toxins. 3, cold compress method: use a cold towel on the forehead, the towel becomes hot and then re-applied with cold water dip. 4, the whole body warm water wet bath or bath: the child’s clothing untied, with about 37 degrees Celsius warm water, towel rubbing the whole body or bath, can make the skin vasodilatation to increase heat dissipation, in addition to water has the body surface evaporation will also lose part of the heat. 5, diet: should be light, it is best to breastfeed, eat more fruits and vegetables, to supplement vitamins and trace elements required by the body. 6, should be regular work and rest, early to bed and early to get up, keep energetic, should do appropriate exercise every day, improve immunity, enhance physical fitness. The living environment is clean and dry, open windows and ventilation, and air circulation is conducive to the spread of viruses. In conclusion, if your baby has persistent low fever, it is best to go to the hospital early for treatment. Actively search for the cause of persistent low fever, and strive to achieve the right treatment to solve the root cause of the persistent low fever state.