BACKGROUND: In burn wound healing, zones of burn, namely zone of hyperemia, the zone of stasis, and zone of coagulation, have crucial importance. These zones have been identified based on the pathophysiology of the burn, and treatment of burn has been improved. The zone of necrosis is treated by excision and repair through grafting. Zone of stasis fully recovers in 24-48 h if the burn treatment is managed well. Otherwise, it may convert to a zone of coagulation. Hyperemia zone is a zone that recovers itself. Recovery of the zone of stasis is very critical in burn treatment. Active oxygen radicals produced due to the hypermetabolism due to burn wounds are known to speed to the process of the zone of stasis converting into the zone of coagulation. The present experimental study aims to evaluate the effects of sildenafil and N-acetylcysteine on the zone of stasis and to establish whether they had any contribution to wound healing in burns.