Hi there. about four weeks ago i developed a large red lump on my neck. it was on the right side and is just below the middle of my neck. the red lump went down within a week but has left a small pea sized lump that is hard but painless underneath the skin with no discolouration. could this be a sign of cancer? im thinking cause it came out like a spot it is probaly a boil, but would that leave a lump?