question: For at least 3 months I have been having severe burning/itching sensation on my lower arms, especially the left arm from the elbow to wrist.  I have seen a dermatologist 3 times, used all kinds of moisturizing lotions, as well as home remedies.  It feels like there are small red pimples under the skin, I can feel them, and occasionally one or two will pop through.  Any idea what may be causing this