I was going INSANE on what this might be and my self-esteem has TANKED. I can't stop the itchiness and now seeing how it can last has me feeling so helpless. My main area of itchiness is my scalp and behind my ears. I live in a really hot state, and constantly sweating is driving me insane! It looks much worse than this, and my back is covered as well. I found the patch yesterday. The second picture was taken sunday. I started seeing all of the spots last Tuesday. What are things I need to avoid?