First of all I am 17. About 3 days ago, I discovered a lump about the size of half a marble. I left it for 2days, and the third day, today, I squeezed it slightly and semi white fluid(similar to what you get when you squeeze pimples) came out. It was as though the lump was made by the buildup of that fluid. However I'm still worried, I squeezed a very large amount of the white fluid out of the lump until all I could squeeze was blood. I'm just wondering if this was cancer or something. Is it dangerous? Right now I have applied some alcohol onto the wound and applied a bandage on it. Right now, it looks like a volcano, still has the lump except that there is a crater. Please help!