I have had these small red bumps that grow and become surrounded by other small bumps my skin itches and at times it feels as if something is crawling also it feels as if somehting is biting my legs even thought the sores are on my arm, stomach and neck they pinching feels mostly on my leggs I have tried to see my md she said that the itchy feeling is making me think that I have some type of bug which I am not the sores are red and painful and are then surrounded by white puss what do you think?