Anti-catarrhal agents work by loosening mucus, soothing inflamed tissues, and supporting the body’s natural processes to clear congestion. Herbs with anti-catarrhal properties often have astringent, demulcent, or expectorant actions. Elderflower (Sambucus nigra) is a traditional remedy for easing catarrh during colds and sinus congestion. Mullein (Verbascum thapsus) soothes irritated mucous membranes while promoting the expulsion of mucus. Goldenrod (Solidago spp.) is another valuable herb, aiding in clearing mucus from the upper respiratory system. These herbs are gentle yet effective in restoring respiratory balance and alleviating discomfort caused by excess mucus.