What temp is considered fever? if child's temp up to 99.5 for several days (down overnight, up late afternoon). feeling fine. should i keep him home?

Depends on method: Your child has a fever if: Rectal temperature is over 100.4° F (38.0° C). Oral temperature is over 99.5° F (37.5° C). Axillary (armpit) temperature is over 99.0° F (37.2° C) Ear (tympanic) temperature (taken in the ear) is over 100.4° F (38.0° C) (if set in rectal mode), or > 99.5° F (37.5° C) (if set in oral mode). (Not reliable if your child is less than 6 months old.) Check up to find cause.