01-08-2026, 10:51 PM
I've developed a weird, blotchy rash on my arms and torso that doesn't really itch. I tried looking it up online, and the sheer number of possibilities in a rash differential diagnosis is overwhelming—everything from a harmless viral rash to something more serious. How specific do I need to be with my doctor about the timeline and other symptoms to help narrow it down, or do they usually just need to see it?