At 0.26 , you're under what a PSMA Pet scan would pick up I think . What does doctors say ? Do they feel like there is stray cells in Pelvic bed or ? I had 22 sessions - no chemicals . Bladder wa funny after the 22 sessions for about 2-3 months , but that was about it . I went from PSA 0.14 to now 0.056 over the last year . it takes times for the external Beam radiation to work ....but it does . I had no PSMA Pet scan before my radiation as at 0.14 its too low to get accurate reading for scan . Dr's felt it was in prostate bed , some stay cells producing PSA . I recommend EBRT for sure at some point after surgery . Adverse effects are minimal.