Hypnotherapy has had a long reputation as one of the powerful ways to give up smoking.many experts put this at about the 80% success rate. It is one of the more expensive ways to get rid of the habit,but way this up over the cost of the cigarettes you will be saving on over time and its easy to see why its popular. A 2 hr single session of hypnotherapy based techniques it all it takes to rid the habit for good. £250.;