Sanicle (Sanicula europaea), also known as wood sanicle, is a perennial herb traditionally used in European folk medicine for various ailments. Its historical use as a remedy for sinus-related issues, such as catarrh or nasal congestion, is referenced in some older herbal texts, where it was employed as an infusion or decoction for its purported anti-inflammatory and astringent properties. However, direct references specifically linking Sanicle to sinus support are relatively sparse and tend to be anecdotal or based on broader uses for respiratory complaints and mucous membrane inflammation. Currently, there is little to no modern scientific research validating the use of Sanicle for sinus health or related conditions. The plant contains saponins and other phytochemicals, which may contribute to its traditional reputation as a mild expectorant or anti-inflammatory agent. Nevertheless, the evidence remains largely historical, and its application for sinus health is not widely supported in contemporary herbal medicine references or clinical studies. In summary, Sanicle’s use for supporting the sinus body system is primarily based on tradition, with minimal supporting documentation and no robust scientific validation.