Strange Rash

Hi everyone, I was diagnosed in February at Mayo with Fibromyalgia and for me it definitely affects my skin. I have had mild roseacea and eczema my whole life but now it is extreme. My face and upper torso particularly go very red and hot and tingly randomly during the day, sometimes when I talk and great sun sensitivity.

Well over 2 weeks ago out of the blue I got an all over body rash primarily on the front of my body, bright red, not raised, but very painful. It will not go away. Docs in philly have had me on prednisone, topical steroids, antihistamines, etc. nothing is working and it is not going away. I am absolutely frustrated. I am wondering if this could be a fibromyalgia flare??? Anyone ever had anything like this? Absolutely nothing
has changed in my diet, household products or routine. I am ready to throw in the towel locally and fly back to Rochester...