The RCT may have been too small to rule out differences, and concealment may have been difficult to achieve because of the side-effects of the peelings.27 The open non-randomised trial has major limitations that compromise the validity of the results. The design of the study is not the most appropriate to answer a clinical question referring to treatment effectiveness. Befor-after comparisons do not allow firm conclusions to be drawn, and comparisons with results of previous reports from different populations may be misleading.28
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Do You Suffer From the Itching and Scaling of Psoriasis? Or the Chronic Agony of Psoriatic Arthritis? If so you are not ALONE! A whopping three percent of the world’s populations suffer from either condition! An incredible 56 million working hours are lost every year by psoriasis sufferers according to the National Psoriasis Foundation.