A member asked:

What could cause an itchy rash all over with bumps. this is for a 27 yrs male, otherwise well, no allergies, takes no meds?

3 doctors weighed in across 2 answers
Dr. Lee Perry answered

Many possibilities: A rash such as the one you described could be contact/irritant dermatitis (reaction to something in your environment like soap), viral illness, idiopathic urticaria (hives). I would recommend seeing your doctor for a definitive diagnosis.

Answered 10/3/2016

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Hard question : This is hard to answer from your description without an image of the rash. It can be pityriasis rosea, particularly if one of the patches started sooner and is larger than the rest. Guttate psoriasis may also be a culprit, particularly if u recently had a sore throat. Also may be lichen planus. See a doctor to get a more accurate diagnosis.

Answered 7/14/2012

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