Hello . Actually I have black lips problem . When I was born my lips were not black but I don't when it became black . Actually in whole childhood I used to lick my lips . I think that can be the cause . And I don't have any habit of smoking also . One thing also sometimes I suffer from
vitamin d3and vitam
b12 deficiency But I feel so embarrassed because . It would be great if you can tell me medicines ,remedies or things to lighten it . It would be great plzzz tell me I am so depressed because of it .here are the photos attached