I had a boil under my breast 2 years ago, and it poped. I went to my family doctor and he cleaned and did dressing. But for the past 2 years there is core like a tiny seed inside that area which has full new skin now, when I pinch it I can feel it. Its not painful or bothering me but yea its like a seed in there for the past two years. And I am very scared to get it checked. What should I do. Is it dangerous?