Since the introduction of BoNT-A in improving cosmetic outcome of facial wounds by Gassner et al. [8],several studies have been conducted to evaluate the role of BoNT-A in prevention and treatment of hypertrophic scars and keloids. The clear mechanisms of action of BoNT-A inscar prevention and treatment are still not clearly understood; however, action on wound tension, collagen, and fibroblasts are proposed [15]. Moreover, it has shown that BoNT-A inhibits release of different substances like(TGF)-b, calcitonin gene-related peptide (CGRP), substance P, and glutamate, thus modulating cutaneous inflammation and wound healing