Wrestling Skin Diseases Ingrown Hair?

Ingrown Hair? - wrestling skin diseases

I recently discovered a small bump on the leg above the knee in my quad. Which has a reddish color around and what looks like a piece of crust on top. When I was very curious and ask the pus, clear liquid, and by blood. It has a small hole in it now. I'm on the wrestling team, and he hoped it was not a skin disease. Suggestions on what can be?