I had/have a case of prostatitis. 1st Urologist put me on Floxin 2/day – 3 months. At the end, pain lessened, but not gone; sex painful.
2nd Urologist did a good exam, and asked if I drank coffee, used NutraSweet or smoked. Answer was “all three” I learned that all three things (NutraSweet and/or saccharine, caffeine, & nicotine) are “known bladder irritants”. Urethra too I’d guess.
Have now cut out all artificial sweeteners & coffee/tea for 3-4 weeks.
RESULT: Pain almost gone, sex drive returning.