Hypnotherapy and any other form of complementary therapy, should be used along side professional medical care - and not used instead of this. Always gain the care and assistance you need from you medical professional. For people with some existing medical conditions consent may need to be gained from their medical professional prior to starting a treatment plan. 

All hypnosis is self hypnosis. when using any form of self hypnosis - especially MP3 relaxation and hypnosis sessions - these must NOT be listened to whilst driving, operating machinery or when normal, everyday consciousness needs to be maintained.