Poison Ivy is another possibility.
If it is going away, I am not sure what your question is at this point.
Without symptoms, I would clean it, and let it go away.
Flaking can be the last stages of resolution.
It can also indicate a condition such as eczema or psoriasis, but these do not seem likely./
I am glad to look at a picture here.
Have your doctor look at your rash as well.
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