With cognitive behavioural hypnotherapy, positive outcomes generally happen quite fast. Stop Smoking is effective in a single two-hour session. However, hypnotherapy is not a “magic wand.”
Most treatments will usually take six 6 to 8 sessions to have sustainable results that “stick” through time.
Remember that the results may vary from people to people and depends on multiple factors like the severity of your symptoms, the way it impacts on your life. The main element of transformation will always be your willingness to change and how you invest in your treatment plan.

No. It’s just recently grown in popularity because of the success of CBT in the last decades. However, the cognitive-behavioural approach to hypnosis takes its roots back around 1841. At that time, the method was not “cognitive-behavioural” as we conceive it nowadays but contains traces of theories that were to develop later under that name.

You may find on the internet that cognitive-behavioural hypnotherapy is just hypnotherapy combined with CBT techniques. It is incorrect. That’s a fairly common misconception because there are some overlaps between them, cognitive-behavioural approaches to hypnotherapy inevitably draw on elements of CBT. 

When People talk about CBT, they unfortunately often mean Beck’s cognitive therapy. In reality, CBT is like an umbrella term covering a wide range of techniques. 

There are many types of cognitive-behavioural therapies :

• Beck’s cognitive therapy 
• Behavioural activation 
• MBCT 
• Metacognitive therapy 
• DBT
• Motivational interviewing 
• REBT Rational emotive behavioural therapy…

They share some features : 

• An emphasis on empirical support and evidence-based practice.
• A focus on directly targeting cognition to influence behavioural change. 

The main impact of adopting a cognitive behavioural approach in hypnotherapy is the dismiss of the state theory of hypnosis ( also known as trance) in profit to the non-state one and a conceptualisation of the client’s problem in cognitive behavioural terms. 

Not really and in a way, it’s the opposite. Cognitive-behavioural approaches to hypnosis somehow predate modern CBT. Moreover, some CBT ideas and methods may derive from earlier hypnotherapy approaches. Cognitive-behavioural therapy” begun to develop ( first under the name of cognitive therapy ) in the second half of the 20th century and did become well-established from the 1980s. The roots of the cognitive-behavioural approach to hypnosis can be found back one century earlier around 1840. At that moment, hypnosis was not “cognitive-behavioural” as we conceive it nowadays, but we can trace already at that time theories that were to develop later in CBT.

I recommend two books :

Essentials of Clinical Hypnosis: An Evidence-Based Approach (2006) by Steven Jay Lynn and Irving Kirsch 

The Practice of Cognitive Behavioural Hypnotherapy (2012) by Donald Robertson

Donald Robertson is the founder of the UK college of hypnotherapy, and you can also find excellent articles on the hypnosis on the website of that school. 

You can also contact me to ask the questions you may have on hypnotherapy