Thanks for writing in HCM.
Persistent presence of pus cells is a worrisome problem. It can affect the kidney
in long term.
Self catheterisation and a indwelling catheter as well can cause this problem. You have to be meticulous with the aseptic technique while catheterising. In case if you have a per urethral indwelling catheter then you should get it changed to a suprapubic catheter which is therapeutically more beneficial.
Regarding antibiotics you should take a mild antiseptic like norflox
for not more than a week. Consume as much water as possible if there are no systemic contraindications to the same. Get the following investigations done on periodic basis.
1. urine culture
2. serum BUN
3. serum Creatinine
If there is alteration in any of these reports consult your physician immediately.
I hope my advice provides you with a therapeutic yard stick.