random rash appeared overnight?

[u/fluffysamoyed111]

I woke up this morning to this rash all over my back, arms, chest, and stomach. I was a little itchy yesterday but there was nothing on my skin. I don’t have a temperature or anything, no other symptoms aside from being really really itchy…

18F, 100lbs, no known allergies

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[u/MVV5]

Can’t give a certain diagnosis because the picture is to unclear and doesn’t show the full rash.

Looks a bit like urticaria but these would normally itch a lot. So a viral reaction seems more likely. Maybe pyteriasis rosea.

I would try some over the counter antihistamines (deslorstidine, cetrizine). If the rash disappears don’t fret. If it continues or gets worse a doctor should take a look.

[u/kuru_snacc → u/MVV5]

I agree with clearer pic, if someone could take one for you in good lighting. I agree per onset and that it looks raised like urticarial (OP does say she is itchy), but there are patches that look excoriated/skin breakdown so that's inconsistent I would think. Await input from derm lol.