Thanks for query,
You have not mention about presence of red cells in urine ? it is countable or plenty.?
In urinary tract infection
pus cells are more than blood cells while in some obstructive disease red cells are more than pus cells.In both condition burning sensation & fever
You require antibiotics with an alkilizer to control infection.
If you have plenty of red cells an USG should be done to find any obstructive uropathy