I have a 6 yr old with a 102 fever...gave ibuprofen at 5:00, the temp remains 102. Cough, congestion, chills, slight lethargy, very decreased appetite. She says her eyes hurt. No vomit or diarrhea..so far. 2 kids in her class sick with strep throat. Her throat looks normal. How do I know if it is strep or flu or other? Thanks