The burning/stinging pee hole has happened to me intermittently every since I've had candida symptoms. Back in the day when I still trusted doctors, I had episodes so bad that it felt like my junk was a flame thrower. And of course I received Antibiotics , setting me up for even more burning. Candida in your urinary tract is MUCH more painful than chlamydia or anything like that (and I speak from experience).
I would recommend trying D-mannose (it's a special kind of indigestible Sugar that carries bad stuff out of your bladder and urinary tract). If that doesn't work, you could also try uva ursi, although D-mannose has worked for me. Also raw garlic will most likely help.