<unk>  regimens use crude coal tar, which contains polycyclic aromatic hydrocarbon, a carcinogen. However,<unk>  is considered safe although use of tar may have the side-effects of contact dermatitis and mild local burning due to tar hypersensitivity. A retrospective study by Stern et al., of 1,373 patients concluded that there was an increase in skin cancers in those receiving repeated<unk>  treatments compared to the control group. This has been refuted by other authors, including Pittelkow et al., who state there has not been an increase in skin cancers among those treated compared to the general population and Menter and Cran, who felt that the Stern study was too crude to have validity and felt a 10-year prospective study would be needed to confirm safety concerns.
Goeckerman therapy
Dance therapy
Music therapy
Art therapy
Reality therapy
Bridge therapy
Metaphor therapy
Scrambler therapy