I , am a 29 year old male, who has been stammering for the last 25 years, i have tried various forms of therapy but now would like to try hypnotherapy , but i will be very expensive, what advice could you give to me about this, and do you think it will help, with the anxiety , and fear of speaking situations, and to help unlearn the neagative habbits and associations that i have developed over the years.? Also, why does nictone tablets (NRT) make me cough?