My mother's lips turns black, a deep tar black. It's like a thick covering or film encases her lips. They become painful. It comes and goes and has been for years. She is afraid to go the the doctor. She is also a recovering drug addict. I tried to comfort her by telling her that she doesn't have cancer or HIV because I have never heard of a person's lips turning black from those diseases. Can someone please tell me several ideas on why a person's lips may turn black and not a smoker's black. She has a hard covering that is black on her lips and if she peels it she has raw lip showing. I know it sounds gross but you should see it! Please help!
Thank you so very much!
-A concerned daughter-