Skin - discoloured lips

Q: My lips turn dry and blackish since the past 4 years. I have a fair complexion but for my lips. I do no not smoke also. Kindly let me know the reason and the treatment if any.

A:Try to avoid any hot things like tea or coffee. Regularly clean your lips. Avoid any spicy food. Try to use sunscreen cream when you go outside. There is no surgical treatment. Various cosmetics can be used for camouflage.