Figure 2: Markov model of decision analysis for cost effectivness of different regimens in scabies benzyl benzoate, P - permethrin, I - ivermectin treatment, Red line - not cured, Black line - cured, Green dotted line - tracing lines The ï¿½Markov population model of decision analysisï¿½ was prepared using our clinical data for effi cacy of each intervention at one and two weeks. Figures in the box on the right side show cost of treatment. The numbers in subscript denote duration of treatment in weeks. The tree has been designed considering 10,000 patient recruitments in each branch for easy analysis. Numbers above the horizontal arrow lines show number of patients in that branch.