When I was younger, my bottom lip was always pink. when I hit my junior year in highschool, my lips began to have spots on them of black pigments. after a while my whole bottom lip except the middle of it has turned black. I need to know wha is wrong because it makes me look very ugly. I tried coa coa butter but *** didn't work. Also, I have always been the type to bite my lip or peel the dead skin off of it. Can someone please give me an answer and if there is a solution, can you tell me.