IRCT20150721023282N23 IRCT 2022-09-13 Esfahan University of Medical Sciences Evaluation of the effectiveness of Boswellia serrata in the treatment of psoriasis Evaluation of the effectiveness of topical formulation of Boswellia serrata extract compared to clobetasol in the treatment of psoriasis vulgaris; a randomized controlled clinical trial 2022-12-21 anticipated 22 Complete https://irct.ir/trial/65645 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: All the arrangements of the two groups will be drawn in pairs in quadruple blocks and each block will be numbered from 1 to the end. Using a table of random numbers, the blocks are selected in order and based on the arrangement of that block, patients will be divided into one of two groups according to the order of admission. 3 Psoriasis vulgaris. Intervention 1: Intervention group: 10% boswellia Ointment, made by Isfahan University of Medical Science, School of Pharmacy,twice a day, for 28 days. Intervention 2: Control group: 0.05% clobetasol Ointment,twice a day, for 28 days. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is no necessity.