Baby fever with cold feet, cold hands, can be appropriate to keep warm, but only the endings of the limbs to keep warm, not the whole body to add clothes and quilts, clothing and quilts should be loose, can not be too much and too thick, otherwise it will make the body temperature rise higher. Because the pediatric fever at the onset of skeletal muscle contraction, so that increased heat production, its blood supply of small blood vessels also contraction, so the blood circulation is affected, the extremities of the endings of the blood supply difficulties, so there will be cold hands and feet, skin and nails pale, there will also be trembling, cyanosis of the lips, the child uncomfortable feeling is also very obvious. Appropriate warmth to the endings of the limbs, to promote local blood flow, can slow down the contraction of skeletal muscles, improve the symptoms of chills and trembling. You can also give your baby hot water to soak his feet and hands to promote local blood circulation and alleviate discomfort, but instead, you can keep your baby’s body temperature from rising too high. If your baby is in good spirits, you can also give your baby a rubbing or warm bath with warm water of about 35℃, which can help your baby to improve blood circulation and relieve discomfort, as well as facilitate rapid heat dissipation. Note that the water temperature should never be high, otherwise it will lead to systemic vasodilatation, increase oxygen consumption, but will aggravate the condition.