Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that you have got
hyperpigmentation of lips and it seems to be due to continuous irritation of the lips with heat from Cigarette leading to excessive melanin formation..
The first thing that you should do is to stop smoking and in case if you re addicted to it you can go for
Nicotine replacement therapy like nicotine patches and chewing gums..
You can apply creams containing
Kojic acid,
glycolic acid and arbutin over the lips..
You can also apply Vitamin E containing gels..
Licorice extract and grapseed extract containing creams can help..
You can also apply honey over the lips..
Exfoliate your lips with a piece of lemon with sprinkling salt over it..
Limit sin exposure and apply SPF 15 containing lip balm..
You should do cool compresses over lip..
In case of no improvement in a month
consult a Dermatologist and get evaluated..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.