What is the hard and painful lump in my armpit?
Patient: Two days ago I woke up with a marble size lump under my armpit. The lump is sore, hard, and some white pus has come out of it. Today I also have what feels like the beginnings of a chest cold. I don't know if the two are related, but at the moment I am more concerned about the lump. Doctor: welcome to Health care magic.1. The most possible cause in this case is carbuncle / furuncle - infective cause of hair follicle. 2.Second possible cause are infective cause of abscess formation. And other causes are lymph nodal enlargement, lipomas - fat (soreness and pain are general not seen)3.If you are my patient, after examination i would have sent for an ultrasound lumps to evaluate the nature of lump and it is extensions  (from - to).4.An incision and drainage maybe needed if its large and infective, after that a course of antibiotic will help.5.See your GP and get the needful tests / treatment done. Good luck.Hope it helps you. Wish you a good health.Anything to ask ? do not hesitate. Thank you.