Efficacy and Safety of the Investigational Device, SurgiShield Anti-Adhesion Barrier Gel

Inclusion Criteria: * older than 21 years of age * both side sinusitis * will undergo endoscopic sinus surgery * volunteers with informed consent and signature Exclusion Criteria: * suppressed immunity patient * systemic grave condition * pregnant * cancer * severe disease patients * asthma patients * AIDS * cystic fibrosis * ciliary immobility syndrome * neutropenia neutrophil * immunoglobulin deficiency * wound healing immune disease * severe liver disease * severe kidney disease * lymph or blood clotting disorder or patients treated with coagulants * patients taking oral or parenteral glucose for diabetes thrombocytopenia * infectious disease * currently lactating * severe septal deviation * case where there is a severe difference in sinusitis state between sides of nose: there is a 3 or more score difference on the Lund-Mackey CT scan scoring system PNS(ParaNasalSinus) * shellfish allergy * food allergy * had endoscopic sinus surgery in the past * patient with large sinus polyps * patients who have received treatment for extrasinus complication