I just laugh when I go in with a symptom described in layman's terms, and they come back with what means the very same, but in latin, as the dx.
are they whealed up any? I'm guessing not though, without the itch. Histamine reaction if so, maybe.
I've seen post covid wheals soothed and removed by an application of coconut or apple cider vinegar.
I got itchy welted rashes randomly after a lonestar tick bite.
Just some ideas. Not any sort of a diagnosis. Looks like freckling to me.