Urethral stricture as per urologist.

I have burning sensation and frequent urination day and night...it will break my sleep...I visited a doctor...he asked me to do urine R/M ,urine culture and abdomen pelvis ultrasound all are neutral...urine test good...urine culture negative and abdomen pelvis is good ...all are normal...after that I visited a urologist...he asked me to do uroflowmetry ...here my average flow rate 3ml/sec,max rate 12 m/s ...my voided volume is 121ml..voided timing 32 sec..max time 31 sec ...time to max flow 11 sec...after seeing this he told me to do urethroplasty operation...he also prescribed urispas and soletin 5 mg ...are there no  non surgical treatment ??plz tell me is that possible that ultrasound normal and urethra stricture.. possible