Evidence supporting the use of: Marshmallow
For the health condition: Laryngitis

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Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Marshmallow (Althaea officinalis) has a long history of use in traditional herbal medicine, particularly for soothing irritated mucous membranes in the respiratory and digestive tracts. The root of the marshmallow plant contains mucilage, a gel-like substance that can coat the throat and provide relief from irritation. Historically, marshmallow root and preparations made from it have been used to alleviate symptoms of sore throat, dry cough, and laryngitis. The demulcent (soothing, protective) properties of marshmallow have been referenced in various herbal texts and pharmacopeias dating back to antiquity, including Greek, Roman, and medieval European sources. However, scientific evidence supporting the use of marshmallow specifically for laryngitis is limited. While laboratory studies confirm the mucilage content and its ability to form a protective film over mucous membranes, clinical trials in humans for laryngitis are sparse or lacking. Most modern herbalists recommend marshmallow based on its traditional use and the logical extension of its mucilage-based soothing effects. It is considered generally safe when used appropriately, but its efficacy for laryngitis has not been rigorously validated in clinical research. In summary, marshmallow's use for laryngitis is primarily supported by tradition and plausible mechanism rather than strong scientific evidence.

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