I'm a 16 year old male, and i've had a lump under
my armpit for about a month now, and i was wondering if anyone could give me any insight as to what it is.
It isn't very big, it doesn't hurt, although it can get a bit tender if i mess with it, it's pretty hard, and seems to be under the skin. I read somewhere that using an antiperspirant can cause bumps like this, and i use Mitchum Unscented roll on. Does anyone know if this has any type of connection?