... I've got an old spot on my forehead thats gone really hard, I never squeezed it and after 6 months its turned into a slightly red lump about 1cm in diameter. the skin itself is soft and normal, but it feels like theres something hard underneath. I can push it around as far as my skin will stretch, and i tried to squeeze it but nothing happened. i wanna know what it is and get red of it. im 18 btw. help?