Hi Welcome to HCM I have gone through your query regarding your tobacco usage .Since last 20 years you are using it . It is so disgusting ,when you have destroyed your self near complete , you are trying to come to senses . Side effects from smoking and chewing can be life threatening. Lung cancer, heart disease, stroke, heart attack, periodontal disease, high blood pressure, emphysema, and mouth cancer are all caused by addiction to tobacco. Thank god , You are still back . I will suggest you ,make up your mind . After leaving this habit start treating your self .take a spoon of soda bicarb in a cup of warm water, Fill your mouth with this mixture,rotate this water in your mouth for 1 minute and spit it Repeat it 3-4 times Do this every day till you feel better . Take Homeopathic remedy Nux vom 200 /4 pills / twice a day / for a week . Causticum 200 / for 1 week / after Nux . Quitting tobacco / gutkha is one of the best things you can do to save money, improve your health and overall quality of life. Start today! Hope this helps solve your query .take care .All the best Don t hesitate for further query .