Chitogel is a postoperative hydrogel nasal dressing that can be applied to sinuses after endoscopic sinus surgery. The hydrogel is made by combining chitosan succinamide, dextran aldehyde, and, a sodium phosphate buffer solution. Many patients with chronic sinusitis whose conditions fail to respond to medical treatment require surgery to return their sinus cavities to normal. Chitogel is designed to improve surgical outcomes in the treatment of sinusitis. Chitogel addresses a number of the traditional sinus surgery shortcomings: • Separate tissue or structures compromised by surgical trauma • Prevent adhesions between mucosal surfaces in the nasal cavity • Minimise ostial stenosis • Control minimal bleeding by tamponade effect, blood absorption, and platelet aggregation • Enhance wound healing and the patient experience