I am 27 , male. I developed an itchy red rash on my upper right side of chest. Due to scratching, it got bigger, and began irritating on my collar bone, on same side. It s been two weeks. And itching still persists. However along my collarbone, on red area I have noticed a series of little bump/lumps. They are moveable, soft and painless. But they are itchy. I noticed one bigger than the rest towards the center of collar. All bumps are on the fleshy skin around the bone. Resting on the bone. What are the possibilities?