Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern.
As per your complain it seems that the patches over the cheeks that are painless along with a history of smoking can be due to causes like
Frictional Keratosis that is a harmless overproduction of keratin layer over the mucosa as a protective phenomena to prevent damage to mucosa with the friction and chemicals..
Other cause can he
Leukoplakia that is also over production of Keratin but there is also disturbance in cells known as cell
dysplasia..
It is a Precancerous lesion and needs mime medical assistance..
Another cause can be
fungal infection known as
Oral Thrush..
I would suggest you to consult an Oral Physician and get evaluated and a clinical evaluation and investigations like Biopsy can be done for diagnosis..
In case if it is due to Frictional Keratosis it will get resolved on its own once the smoking habit is stopped..
In case of Leukoplakia you can be advised Multivitamins and anti oxidants like Lycopene for atleast 2 to 3 months..
Cessation of smoking is must..
Hope this information helps..
Thanks and regards..
Dr.Honey Nandwani Arora..