Farhang B, et al. - Oral zinc prevents oral mucositis associated with chemotherapy. The impacts of administration of zinc lozenges on postoperative sore throat (POST) were investigated in this study. As a result of administering a single dose of 40-mg zinc lozenge 30 minutes preoperatively, researchers noted an effective reduction in both the incidence of POST in the first 4 hours and severity of mild and moderate POST in the immediate postoperative period.