i am not a doctor just another mother. my kids are now ages 27 21 and 16. i would take my children to the doctor pretty quickly (within a day or so) for fever as high as 103 degree f. although many times the dr. would say it was something that would pass on it's own and just to provide fever medication and make them comfortable i never wanted to take a chance that it was something serious that we could catch early. i would consider the following: does the fever reduce with medication? if so than you can keep it under control for now. if not you might use that as criteria to go on in. is the child drinking normal amounts or more? if so that is another good sign. fever can really dehydrate someone. if he/she refuses fluids can't keep them down or is drinking less than normal again i might use that as criteria to take the child in. i never used eating as a criteria while a child had fever as long as they could keep something down and would eat a little. other mothers may disagree with this. this last bit is what my mother a registered nurse told me: if in doubt call or take the child in. you'd rather err on the side of caution when it comes to kids.
my 3 y/o son has a fever of 102-103 for last 2 days when should i take him to the hospital if the fever doesn't go away. no other symptoms he is drinking fluids and eating very little.