I'd be willing to bet it's a yeast/fungal thing. All that topical stuff probably eliminated all the normal beneficial microbiota on your skin, making it easy for some other less pleasant business to take over. You might experiment topically (topically) with: diluted ACV, as previously mentioned, or verrry dilute tea-tree oil, or very very VERY dilute GSE. I'd give it at least four days, as long as there is no exacerbation- this isn't a gets-worse-before-it-gets-better thing. Hell, if you're get desperate, (i know i would be) it might even behoove you to skip the 'natural' route - esp if you don't already have that stuff on hand - and cautiously try some regular drugstore OTC anti-fungal preparations..
Sounds like your diet is pretty solid, i'd for sure continue to vigilantly avoid sugar and fruit until you're all cleared up. Good Luck!