Hello and welcome to HCM
It takes about 7-10 days to cure after a complete course of proper antibiotic and anti-inflammatory. As you are still suffering form fever
and pain, means you still have infection and inflammation of the part. consult your doctor and ask him to add another antibiotic to your treatment and if needed go for USG Scrotum
and revise you treatment according to that.
Hope this will help you and tell me the progress after 3 days.