Oooooooh, Dee74!
You seem to be describing something that sounds VERY MUCH like the rash I had for many years. It started in the early 90's, as welts that looked like mosquito bites. About 4 years of this, roughly every three months. Interestingly, I was getting more summer sun than I'd had since my teens.
Then the welts would appear and "morph" into big red rings. The very first red ring I got was on my back: local dr. treated me for Lyme. I was so sick the day it bloomed, I thought needed hospitalized: shivering, shaking, burning with fever, pain all over, dizzy, huge headache, etc. Then the rings started appeariing on upper arms, underarm area, shoulders, etc. NEVER on my face: nada there.
I had the ringlike rash format for four more years before being Dx'ed with SCLE = subacute cutaneous LE.
FYI, demographically, SCLE favors women (like the other lupus types), esp. those of W. European descent. Median age of onset is something like 43. Rash favors *upper torso*, but rarely appears on the face, too, though. (I howled when I read this data, it fit my situation so perfectly: I'd nailed *something* right!

)
If you use your browser to look up SCLE, you can find pics. Look for the dermatology websites, ones written in "medical-ese". See what you think, just from a visual standpoint. (Biopsies still required, of course...)
Last I knew, Cleveland Clinic still enjoys a great rep. I was born & raised north of Pittsburgh & knew people who went to specialists in Pgh. & Cleveland. You do have good choices, Dee. So---regards & best wishes & good luck, from Vee