I'm pretty sure I've had this skin tag for a while now but a few weeks ago it got snagged on a loose thread of my bra, and a couple days ago I realized that it was painful when I touch it, and it is very red at the base. I assume it's been twisted (it even kind of looks twisted) but what should I do about it??? It's in an awkward spot under my arm so it hurts sometimes when I'm lying down on my side. Will it fall off on its own because of the lack of blood flow - and if it does will it cause an infection/bleeding? Would a doctor remove it because it's twisted?