I had psoriasis for two years and negligently did not care. It affected my scalp and both elbows. Whenever I went I left dandruff spills and that started to be a problem and people started to notice and comment on my elbows' white patches. I went to see doctors and their prescriptions were expensive and did not work. Until I talked to the owner of a pharmacy. He told me to use Polytar liquid shampoo for scalp. I used it everyday and washed my hair and scalp with. I did not use any other shampoo. I also used it on both my elbows at the same time. I took some precautions not to use other bath soap on the affected area. That was a miracle the patches completely dissapeared on my elbows, but some tiny points remained on my scalp. 6 months later, it reappeared on my scalp (seems the residual points developped) and appeared on one elbow. Just now I am using polytar again and it is working again on my scalp and also on my elbow. I keep thinking that if somebody use liquid shampoo (e.g polytar) on the affected areas, and a tar soap instead of ordinary bath soap, psoriasis CAN be cured. The affected parts must be rubbed with the shampoo until the rashes dissapear, and the shin become clear reddish. Furthermore I personally think (although I did not use it) that just after the shampoo and until the next one, a parrafin application will soften and repair the skin until the next shampoo application. In fact, I also noticed that the psoriasis patches start to cure from the centre first and then towards the edges. The skin became clear and back to real NORMAL. I have just started treating the resurge (mid february 2009) and will be able to tell soon whether the shampoo worked this time also. If somebody can start a daily usage (with deeply working the lesions, then applying parrafin), he may also be able to tell whether it worked or no in his case.