question: Hi. I have a 2.5year old that has been running a fever for 6 days. In that time it has ranged from 100-104.4. Also she has had 2 days where she was fever cree for about 6 hours each. She seems to shot up in temp fast. She has been screened for strep, ears checked, and chest fine. She doesn t have any other symptoms. Whether fever gets above 101, usually at night, she whimpers and shivers. How long is a fever too long? What causes just fevers?