Hello my friend i truly appreciate and understand concern towards your health....first and foremost advice of mine to you is to stop smoking. The benefits of quitting smoking are extraordinary. Once you're tobacco-free, your risks of heart disease, lung disease and cancer begin to drop even if you've been smoking for years....You should have strong determination and patience if you want to quit....and medications can't be prescribed just like that...de addition is a multi step procedure... you need to undergo counselling sessions to get motivated later on medications can be started... I would suggest you to consult nearest deaddiction center they will do the needful.