Hi. I am really sorry to disturb. I have had a red , painfull when touched, lump, under my armpit. It goes away after couple of days, but after a while it comes back. It is hard on the inside as well as a bit swallen and red on the outside. Now i have it in a more private area. Same red, hurting when touched, lump. What could it be? I am really scared. Thank you so much for your time.