This clinical case report describes the reconstructive management of a child who developed a rare aggressive soft tissue infection - necrotizing fasciitis - complicating varicella skin lesions, with a synthetic dermal regenerative template - NovoSorb Biodegradable Temporizing Matrix - in conjunction with a split thickness meshed skin graft. The scarcity of this clinical case, the need to cover large skin defect promptly while facing infectious and pediatric challenges make it interesting to describe NovoSorb Biodegradable Temporizing Matrix in addition to split thickness meshed skin graft a novel treatment in necrotizing fasciitis of the child. A rapid surgical treatment followed by this reconstructive strategy achieved an acceptable functional and aesthetic result, with timely healing despite the severity and extensive surface area of the infection.