My parents put me through loads of it when I was a small child but all of that was useless. I don't think any of those speech pathologists had a single clue on how to deal with stutter, honestly. A bit later on I went through intensive group therapy which lasted for ten days. That's the only speech therapy that's ever helped me, and I kept excercising afterwards but my stutter gradually got worse until I was pretty much back where I started. Haven't done anything about my stutter since then.