Hi, I've recently noticed a small brown mark in my right armpit, I didn't do anything about it until today. I used a tweezer to remove the tiny brown - whatever it was - I assumed it was a skin tag. when I finally removed it, the sting of the tweezer caught my skin, when I squeezed it, a white, smelly discharge seeped out, when I rubbed it, it broke into small pieces and broke away - like cottage cheese! This brown mark was noticed in the lower, middle quadrant of my right armpit - I have no idea what is - do you know?