It means that its healing. Do NOT touch it. It will get better.
I think you've burnt your flesh. Where are your parents? They have to bring you to the hospital now. It's an emergency!
Until then, run it under really cold water, but don't run the water hard, gentle but cold.
That it's heavily burned. Put honey on it! Always workss trust me! Honey will prevent bacterial infection as well as being cool to coat the burn.