Hi I have been getting reaccuring red, swollen, itchy,hot to the touch swellings or blotches on my arms or hands now for months. They would appear for days then disappear leaving dark bruise like marks. The more they appear the bigger they seem to be. I have been going to my primary care physician for a couple of month now, we thought they were an allegic reaction, I even went to an allergist this past week and she ruled out an allegic reaction to any foods. I'm schedule to have my blood drawn and to see a dermetologist in a couple of days, but im very worried because i'm having a bad flare up today. Can you please give me answers of what could be wrong with me i'm starting to believe it might be some kind of disorder. Also because this one is on my elbow i'm having a little bit of stiffness in my arm.