Kappa‐carrageenan sinus rinses reduce inflammation and intracellular <i>Staphylococcus aureus</i> infection in airway epithelial cells

Abstract

The commonly used sinus irrigation product Flo Sinus Care with added kappa-carrageenan reduces IL-6 production by HNECs in vitro. Flo CRS and Flo Sinus Care rinses significantly reduced S aureus intracellular infection rates of HBE cells. Our findings may have clinical relevance for CRS patient management.