I wet through TURBT, 2 TURB biopsies, Retrograde Pylogram, 3 scopes, 6 weeks Mitomycin, and jut finished 6 week BCG induction. My pain was more at base of penis and even more in prostate, bladder floor area. So may not apply to you husband.
When pain was at it's peak my MD felt UTI was possible. Fortunately/unfortunately tests came back clear. Maybe check with your primary care MD and ask for another opinion.
4 months ago my MD saw a restriction in my urethra. Was slowing down my flow. When he did my last TURBT/biopsy he dilated my urethra and that seemed to help a lot.
Good luck and glad to hear no surgery.