I am a type 2 diabetic. Recently I developed a nodule in the upper outer fold of my ear, which is very painful. It dosen't bleed, but does develop a sticky clear crust, if I pick it off, it really burns. The right ear has been on-going for at least a month. Now I have the same thing on my left ear. Been using neosporin and hydrogen peroxide, but nothing seems to be working. Help to understand the problem.