What I would stay away from are techniques that deal with breathing. It may sound obvious at first, but the tension of the symptom influences breathing and not the other way around. In addition, such techniques often promise a cure, which, according to specialist literature, does not exist. After such therapies, the symptoms often disappear, but they develop again after a few months and are often more severe. Speech therapists and stuttering associations therefore tend to advise against such therapies.