BCG SIDE EFFECTS-BURNING AND URGE INCONTINENCE

 After my father's last bcg instillation he has had constant burning and urge

incontinence.   This has been going on for about 3 months.  The doctors seem

stumped and keep telling us it is an inflamed bladder.  The meds that they have

given us provide no relief.  Has anyone else experienced this?  And anyone have

any input or insight into this side effect?