Thanks for posting your query.
Your mother is having post-surgical complication and got infection of urinary tract
. Puss cells on urine analysis are dead white blood cells which fight against bacteria. It indicates bacterial infection, E.coli
is common bacterium causing UTI but other bacteria may cause it.
As your mother could not recover after using antibiotics, it is quite possible that bacteria are resistant to that antibiotic ,however, some times doctor do not know what bacteria is growing inside and prescribe a drug that dose not kill it, so you need to perform urine culture and sensitivity to find out bacteria and drug that would help.
continue medication prescribed by urologist
for recommended period then revisit him.
Hope it helps.