Synopsis

Source of validity: Traditional
Rating (out of 5): 1

Pine (unspecified species, but often referring to Pinus sylvestris or similar) has a history of traditional use for respiratory ailments, including laryngitis, primarily in European folk medicine. Pine needles, buds, or resin have been used in infusions, syrups, or inhalations to soothe irritated airways and to act as mild expectorants. This use stems from the aromatic oils (notably pinene) found in pine, which are thought to have mild antiseptic and anti-inflammatory properties. However, the scientific evidence supporting pine for laryngitis is very limited. There are a few in vitro and animal studies on pine essential oils showing antimicrobial and anti-inflammatory effects, but these are not specific to laryngitis and do not translate directly to human clinical benefits. No well-designed clinical trials have demonstrated efficacy of pine preparations in treating laryngitis in humans. Thus, while the use of pine is justified by tradition, and it may have some plausible mechanisms of action, the overall evidence is weak and mainly anecdotal. Users should also exercise caution, as pine oils can be irritating or toxic if ingested inappropriately or used in high concentrations.

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