Evidence supporting the use of: Licorice (various)
For the health condition: Headache (sinus)

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Synopsis

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

Licorice (Glycyrrhiza glabra) has a long history of use in traditional medicine systems such as Traditional Chinese Medicine (TCM) and Ayurveda. In these systems, licorice is commonly used for its anti-inflammatory, demulcent, and expectorant properties. Specifically, for sinus headaches, licorice is included in various herbal formulations aimed at relieving symptoms associated with sinusitis, such as inflammation and congestion, which can contribute to headache. The rationale for its use is primarily its reputed ability to soothe mucous membranes and reduce inflammation in the upper respiratory tract.

However, while licorice is traditionally included in remedies for sinus congestion and related headaches, scientific evidence supporting its effectiveness for this specific indication is limited. Some laboratory studies suggest that licorice contains glycyrrhizin, which has anti-inflammatory and immunomodulatory effects, but direct clinical trials evaluating licorice for sinus headache relief are lacking. Most evidence remains anecdotal or based on historical use rather than robust clinical research. In summary, licorice's role in treating sinus headache is primarily supported by traditional use rather than strong scientific validation.

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