BM 163 CATARRH is Inflammation of the mucous membrane with constant flow of mucous. Flow of mucous from the nose, ears and sinuses. Runny or viscous fluid brought on by viral or bacterial infection. Watery catarrh, clear catarrh. Thick catarrh or yellow catarrh drips down back of throat and onto vocal cords. BM 163 CATARRH targets these symptoms with a one of a kind formula that includes natural herbs, minerals, and vitamins designed to reduce inflammation and provide relief. It's a safe and effective way to support optimal lung health.