Usually my skin is pretty clear but recently on my chin a bumb formed. It was one of those under the skin pimples that developed on my chin and it was my first time getting one, before that I only got white heads. It was tender to the touch and kind of big, but it was the same colour as my normal skin tone so it wasn't that noticeable. However the feeling of it annoyed the crap out ofme and i wasn't sure how long it would take for it to go away on its own. So I tried to pop it (I know, bad idea) before it came to a head, nothing came out and the skin was much more sensitive and became more irritated. The next day the pimple turned dark brown although there is no scab, it's still sore when I touch it. Currently it's big and dark, is there any way to lighten it?