My sympathies for the misery you are feelig. I found an article about candida causing uti pain. Yes, that is a pharmaceutical company website, but the site offers a bit of information. http://www.merck.com/mmpe/sec17/ch231/ch231c.html

Symptoms and Signs
Most patients with candiduria are asymptomatic but have easily identifiable predisposing factors. Whether Candida can cause symptomatic urethritis (mild urethral itching, dysuria, watery discharge) is controversial. A fungal cause for these symptoms in men should be considered only when all other causes of urethritis have been excluded. Candidal urethritis is rare in women; however, in candidal vaginitis, dysuria may result from the urine coming into contact with inflamed periurethral tissue.

= = = = = =
a different site http://www.tagnet.org/abstracts/v8n2.htm
CANDIDA/UNDERWEAR
Women who are being treated for vaginal Candida infections may be reinfected by underwear which still contains Candida after laundering. It has been shown that the thermal death point for Candida albicans is between 154 and 163 degrees F. (68-73 degrees C). Many water heaters are incapable of heating water to this high level. It has been suggested that ironing the underwear may be necessary to prevent reinfection. A preliminary report demonstrates that Candida-contaminated underwear may be sterilized by placing it in a microwave set at the high setting. Damp fabric was sterile after five minutes of microwaving, but dry fabric still contained live Candida albicans despite microwaving. The researchers suggest that microwaving underclothing still wet after routine washing may be an effective method of decreasing the risk of reinfection. (Journal of Reproductive Medicine 33(5)421-422, May 1988) Use great care in microwaving underwear. Several reports have appeared in the newspapers of women who have set their homes on fire.
= = = = = =
Maybe some of the information on this curezone post will help you
http://curezone.com/forums/fm.asp?i=751669#i