I have a very large, painful lump in my armpit that I think *might* be a plugged duct. It's pretty high up, closer to my arm, and I'm not sure just how far the ducts go up into the underarm area. I'm pretty sure it's not an ingrown hair, as I've tried everything that usually works if I do have one. I've done warm compresses and massage and constant nursing on that side to try to get it to move along. Nothing yet and it still hurts. My breasts aren't filling up (obviously, with the location) and I'm not really having any pain anywhere else besides right around the bump. Does this sound like a plugged duct or a more serious issue? TIA for your help!