on the middle of them, It looks really disgusting, I noticed the problem about a year ago. It could be related to my new toothpaste I use which contains Baking Soda, I heard that may damage lips
Hello,
It can be due to fixed drug eruption or hyperpigmentation skin. FDE or fixed drug eruption may fade slowly and so may take a long time to go away. Although they resolve spontaneously but an oral antihistamine (e.g., hydroxyzine) and a topical corticosteroid may be needed.
I would suggest you to consult a dermatologist and get these possibilities evaluated. Treatment depends on the confirmation of diagnosis. It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
I'm currently using Blistex Relief Cream as I heard it may help. Anything at this point! I shall try and visit a dermatologist soon. I don't think its an FDE as I'm not one to take many types of drugs.