Assumption that immunosuppression = must be bacterial = must take antibiotics is misdiagnosis 101.
Could still be viral - infact it still most probably is
Or is bacterial could be the wrong type of antibiotic. Maybe it's a bacteria resistant to the antibiotic. How would you know?
Where to from here?. Continue antibiotic? - another course?. On what basis?
Change antibiotic ? To what?. And on what basis?.
UTI completely different kettle of fish - almost always bacterial.
Lets start with the assumption that it's bacterial. Maybe that assumption is incorrect.
That it has "worked" in the past does not make the assumption correct.
