Talk to Pediatrician on Daughter Has Fever Since Eid

Dear doctors, my daughter is 4. Since Eid ul Azha, she has fever that gors down when we give her Brufen/Panadol, but it returns in a few hours. At first she had high fever (102-103). The paediatrician blamed tonsils and gave her Cefalor + Brufen. We completed that course and the high fevers turned to mild fevers (99-100). Then he shifted us to Cefspan + Brufen/Panadol. We completed that course twice, but her temperature still rises to 99-100 in a few hours after we give her Panadol. When she wakes in the morning, her temperature is up. She drinks milk and we give her the med. She stays well till the afternoon. Then the temperature starts to rise and so on. This time around the tonsils can't be blamed anymore as they are fine now. Plz guide.