Hi.
I'm 15, and there's this strange, red mark below my right nipple. It's slightly bigger than a quarter, and is VERY sore. There isn't a lump as far as I can tell, but it's too tender to really search for one. My mother said to wait a couple days to see how it progresses before she takes me to the doctor. Is this likely cancer? I'm very scared. =/
Help please.