Study of the Effects of Brilacidin Oral Rinse on Radiation-induced Oral Mucositis in Patients With Head and Neck Cancer

This study will examine whether daily oral rinses with a solution containing brilacidin will prevent the occurrences of OM or lessen the severity of OM if it occurs. Patients will use an oral rinse 3 times daily for up to seven weeks during chemoradiation for head and neck cancer.