Welcome to HCM and thanks for your query.
Fever after stone removal may be common if there was associated infection/ if the stone was completely blocking the urine tube or if it is percutaneous stone removal.
If the doc had placed a double J stent
or PIGTAIL CATHETER in the kidney
, you need not rush.
Otherwise, it is wise to take medical advice
, fever and urologic intervention is like a time bomb.
Kindly act asap.