Hello. Pain after Ureteric surgery can be due to residual Ureteric stone, Uti, stent related injury
Get following tests done
In meantime take the following
Tab cefexime 200mg bd for 5 days
Tab tamsulosin 0.4 mg hs for 7 days
Tab pan d 1 tab od bbf for 7 days
Syp alkasol 2 tsp TDS
Next Steps
X ray Kub and urine culture