Jewelz, if it was me and the gramma says he's okay Id wait it out. Call and check on him in an hour.
Garrett had a fever Saturday for bout 30 minutes, he took Tylenol and been fine since. Little man was warm this morning and find within an hour. SOmetimes little ones get down for a short period and then fine. A low fever shows he's fighting something, thats it, sometimes its as minor as a boo boo infection taht never surfases (Like a mosquito bite, flea bite, or spider bite)