Blood test for checking infection. Now a dsys there are viral fevers that go away on their own.
Next Steps
go to lab for blood test. (WBC levels etc).
Health Tips
if other abnormal symptoms appear immediately see a doctor or if temperature is reaching 103 F again consult doctor on urgent basis. viral fever should go typically in 7 days. so keep tab on fever level, abnormal symptoms and number of days fever lasts.