It's a fungus that causes itchiness and redness of the skin. It's generally very itchy, but after scratching it, it often stings or burns. Typically, jock itch is a low-grade fungus. It's easy to kill using an anti-fungal ointment. But if you let it go too long, it may travel to other parts of your body in the shape of red, ring-shaped eruptions, known as ring worm. Ring worm becomes more problematic, particularly if it gets on your scalp.
But usually this is a very common, easily treated problem.
"If I don't manage to fly, someone else will. The spirit wants only for there to be flying. As for who happens to do it, in that he has only a passing interest."
- R.M. Rilke