I had my ear pieced at the top a while ago and since then a lump has developed on the back of my ear where the whole is. It's quite big (around the size of your average pea or maybe a little smaller) and I had to take my earring out yesterday because it was too tight with the lump there. I have decided, along with my mum, to leave my earring out until the lump has gone and then get it re-pierced. Does anybody know what this lump might be and how I can get rid of it?