Now that you have clarified that you have history of tobacco usage, the first suggestion would be to quit this habit because it is probably starting to show its negative effects. The stage of involvement of the oral tissues can be determined after a proper clinical examination only. No medications are going to cure this problem and home remedies should not be sought after because they will only allow the damage to continue unabated without causing major relief. Please consult an oral pathologist or an oral medicine specialist for proper evaluation of your case. Regards.