If by "spreading to places the sun don't shine" you are referring to female privates I have had great success getting relief from chronic female issues in the vulva, not classic yeast which has discharge, but burning exterior tissues . Many of us with GD have multi issues which adds to the confusion of treatment and diagnosis. Last Oct I went one an anti-inflammation diet. I have mentioned this many times on this site, William Crook, MD, The Yeast Connection Handbook, I have the later addition that includes some herbals like oregano and caprilic acid. Crook is a pioneer, one of the first MD's to tie in diet to elevated yeast as the culprit in raising inflammation. I found an old book for 25 cents at the library sale, yet I saw it is still for sale on Amazon. Simple, easy to follow plan. Detox for min of 2 months is a challenge, but after that more foods are introduced. The Whole 30 diet Mariannj is on is more brutal as now I can have specific carbs and add back limited natural sugar in fruit. I noticed a difference in my privates in 6 weeks and was so incouraged I kept up the detox for 3 months as many more recent diets suggest. Yes hard to give up natural sugar and from your photo you look slim like me. Weight loss is an issue. I can't loose more weight. After being on this almost year I have dropped 15 lbs and down to 121 at 5' 6". I eat volumes of food, yet giving up gluten and processed sugar for life does something to the metabolism and the food doesn't go to fat in the body .
I have great empathy for you with your commute. I am older and retired, but still travel distances at times. When in a full blown breakout leaning back in a seat was too painful, so I would drive hunched over the steering wheel for hours. As you know our back muscles ache from this unnatural position.
Please hang in there encouraged by the hope that in most cases the first break out has the worst symptoms and it lasts the longest. Then most get a break, for me it would be about 5-6 months, then another breakout for me for 6 months, but with each breakout it would be at least 15% less severe. After living with it for 4 years I was down to break outs at least 30-40% less severe. Now the cilantro has been a miracle arresting my March 19 breakout, however something is going on with my lower back torso, the all to familiar itch. Yet can't see the typical rash bumps coming on. Still as mentioned I have done everything wrong. Brutalizing my body with record breaking heat and getting soaking wet with sweat because of my activity.
I see you live in South GA and I lived in Valdosta for a year. I taught school back in 1970-71 in an old red brick 2 story schoolhouse in Hahira GA- no air-conditioning. I made my own sleeveless cotton dresses and lived on those tall glass bottles of coke out of a machine and for the teachers we have a huge kettle full of sweet ice tea with plenty of ice. My hair was always in a ponytail! Nothing like GA heat and humidity which would aggravate GD conditions. Back then no eczema for me.