There is a small, pea-sized lump on the left side of my neck over the platysma muscle, close to where you would take a carotid pulse. It must be open somewhere, because there is a cheesy odour coming from it. It is white in colour (my skin is brown), and I can feel it when I move my neck. Do you think it could be zapped with liquid nitrogen, or drained? It smells when you touch it and I think it is so gross.