About a month ago, there was a spot that looked red and inflamed. That settled down and left a hard, moveable lump on my neck just under my face. I'm worrried that this lump hasn't gone away and it's been a month. It's a bit larger than a pea, but hasn't changed in size. I'm thinking it may be a cyst but idk why it hasn't gone away in so long. Anyone have an idea of what it may be?