This is similar to the over-arching goal of individual psychotherapy. Disease and illness are synonymous in common usage. The following makes a useful, albeit clumsy, distinction between disease and illness in the interest of understanding something about the world of human suffering as seen by practitioners. Responsibility for the problem is given over to the practitioner. Diagnosis of disease requires objectivity.
Treatment is based on relieving or reducing pain.
Treatment of disease does not demand attention to the whole person. Disease refers to the way practitioners recast illness in terms of their theoretical modes. They also can be used to change illness into disease. The cultural manifestation of a disease. Illness includes meaning, experiences and patterns of coping with symptoms.