Hypnotherapy has been successfully used as a treatment for irritable bowel syndrome, a pair of researchers who recently reviewed the best studies in this area, conclude,

The evidence for hypnosis as an efficacious treatment of IBS was encouraging. Two of three studies that investigated the use of hypnosis for IBS were well designed and showed a clear effect for the hypnotic treatment of IBS. ^[40]

Hypnosis for IBS has also received moderate support as an evidence-based treatment in the National Institute for Health and Clinical Excellence guidance published for the UK health services.^[41] It has been used as an alternative to chemical anaesthesia,^[42][43][44] and it has been studied as a way to soothe skin ailments.^[45]

A large number of clinical studies show that hypnosis can reduce the pain experienced by people undergoing burn-wound debridement, bone marrow aspirations, and childbirth. The International Journal of Clinical and Experimental Hypnosis found that hypnosis relieved the pain of 75% of 933 subjects participating in 27 different experiments.^[46]

In 1996, the National Institutes of Health declared hypnosis effective in reducing pain from cancer and other chronic conditions.^[46] Nausea and other symptoms related to incurable diseases may also be controlled with hypnosis.^{[47][48][49][50]} For example, research done at the Mt. Sinai School of Medicine studied two groups of patients facing surgery for breast cancer. The group that received hypnosis reported less pain, nausea, and anxiety post-surgery. There was a cost benefit as well: the average hypnosis patient reduced the cost of treatment by an average of $772.00.^[51][52]

Hypnodermatology is the practice of treating skin diseases with hypnosis: this therapy has performed well in studies treating warts, psoriasis, and atopic dermatitis.^[53]

Hypnosis may be useful as an adjunct therapy for weight loss. A 1996 meta-analysis studying the effectiveness of hypnosis combined with cognitive-behavioral therapy found that people using both treatments lost more weight than people using CBT alone.