I Have Been Subjected To Male Yeast Infection In The

I have been subjected to male yeast infection in the groin area for several years. I've gone through all tests and it kept reoccurring following treatment and now it's simply there all the time; some odour and lots of itching. My doctor gave me a prescription for a single pill for $16.00 that makes it go away for two to three days but back again. Topical creams do not do anything. I've been drinking Nystatin for three months which doesn't seem to do anything. My blood sugar tests are normal to very slightly elevated periodically. I am not diabetic. Any suggestions? A symptom that appears linked with the infection is that I have a decreased ability to urinate during the night which gets increasingly difficult as winter arrives and is fine during the summer.