Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern...
As per your complain the raised
white spots at the site of tobacco dipping can be TOBACCO KERATOSIS caused by friction caused due to continuous placement of tobacco leading to over production of keratin as a protective layer..
It can get resolved gradually by itself once the irritating factor is withdrawn completely..
Other reason can
Leukoplakia which is pre cancerous lesion and is caused due to
hyperkeratosis and milder patches gets resolved by reduction of irritating factor and intake of antioxidants and multivitamins..
Another less common cause but cannot be ignored can be
Verrucous Carcinoma which is also caused due to tobacco dipping and needs immediate medical attention..
You should consult an Oral Physician and get evaluated so that he can make a confirmatory diagnosis and can treat you accordingly..
Along with clinical examination he can also advise you
Biopsy for confirmatory diagnosis..
Hope this information helps..
Thanks and regards..
Dr.Honey Nandwani Arora