question: For about 6 months I have been receiving these scabs on my legs and arms and they keep spreading. I have gone to a doctor and she seemed really worried. She suggested it might be allergies but does not know. I can't get into the dermatologist until next month but it's getting worse. The itchiness won't subside at all even with itching cream. And also when it's cold my skin gets even more itchy and white bumps appear on the surface of where I scratch. What could it be?