Doc I have smoking 45 years I need soom help I smoking 4 pack a day?

Quitting smoking. Cold turkey is the best way, but nicotine or cigarette tapering are viable options as well. For cold turkey, pick a quit day in advance, prepare for it, and go for it.
See your doctor. Your doctor will know of methods to help you, if you've decided you're ready. Certain medications can help, and so can hypnosis with an experienced therapist. Congratulations on your healthy decision! more info here: http://www.Cdc.Gov/tobacco/data_statistics/fact_sheets/cessation/quitting/index.Htm.