Chondroradionecrosis (CRN) of the larynx is perhaps the most serious difficulties of radiation treatment. It might advance or get deadly regardless of forceful treatment measures. Hyperbaric oxygen treatment (HBO) has been utilized to treat radiation rot of the head and neck. HBO is thought to fix vascular beds inside the irradiated tissue, improving neovascularization and wound healing. The adequacy of HBO in the treatment of laryngeal CRN has been depicted in a couple of case reports and arrangement. The reason for this examination was to decide the ideal analytic strategy and the executives in six patients with laryngeal CRN.