It trains you in a combination of physical postures, breathing exercises and meditation. It is particularly useful for stress management. Shiatsu is not one of those yappy little dogs. It is a Japanese 'finger pressure' therapy and is based on the same principles as Acupuncture. It is meant to be superb for musculo-skeletal problems, including back and neck pain and arthritis.
Reflexology is possibly another candidate for being 'notsoalternativeanymore'.
It is becoming so mainstream that is used in the national hospital systems of countless countries. Aromatherapy is the use of essential oils to treat, relax or stimulate the person being treated, according to their needs. The oils can be applied though massage, in the bath or burnt in a variety of oil-burners. Aromatherapy has been credited with soothing the symptoms or even halting the progress of several major illnesses. And that's where you have to be careful.