so fustrated

Daughter has had a fever for the past 2 days highest being 102.8 today took her to see her pediatrician and all she said was if the fever continues from now till Wednesday bring her back. Wth my poor kid is extremely cold nothing seems to warm her up all while having this stupid fever and all she tells me is bring her back Wednesday if it doesn't go away!! I'm sorry but if anyone has gone through similar please tell me what y'all mamas did in seriously thinking of just going to the ER.