Spruce for Laryngitis: Evidence Synopsis

The use of spruce (including spruce buds or spruce needle extracts) for the treatment of laryngitis is primarily rooted in traditional herbal medicine, especially in Northern and Eastern Europe. Historically, spruce preparations have been used as remedies for various respiratory conditions, such as coughs, sore throat, and hoarseness, which are symptoms often associated with laryngitis. This traditional use is based on the perceived soothing and anti-inflammatory effects of spruce resin and essential oils.

The primary constituents believed to contribute to these effects are terpenes, such as borneol and pinene, which may provide mild antiseptic and expectorant properties. Folk medicine often involved the use of spruce syrup or tea made from young shoots to ease throat irritation and improve vocal function.

However, scientific validation for these uses is limited. There are very few clinical studies specifically investigating spruce's efficacy in treating laryngitis. Most available evidence is anecdotal or based on broader studies of herbal treatments for respiratory ailments. The lack of rigorous, high-quality clinical trials means that while traditional use is well-documented, the scientific support for spruce in laryngitis remains weak. Therefore, while spruce has a place in traditional remedies, its effectiveness for laryngitis is not strongly supported by modern scientific research.