Synopsis

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

Eyebright (Euphrasia officinalis) has a long history of traditional use in herbal medicine, particularly in Europe, where it has been employed to support respiratory health, including the sinuses. Folk medicine practitioners have used eyebright to address symptoms associated with sinusitis, colds, and allergies, often in the form of teas, tinctures, or topical preparations. The herb was believed to help "clear the head" and relieve catarrh (mucous buildup) in the nasal passages and sinuses. However, there is a notable lack of robust scientific research supporting its efficacy for these purposes. A few laboratory studies have examined its anti-inflammatory and antioxidant properties, but these studies are limited and have not translated into clinical trials confirming benefits for sinus health in humans. Most references to eyebright's effectiveness for the sinuses are anecdotal or based on historical texts rather than on modern scientific evidence. Therefore, while eyebright is still found in some contemporary herbal sinus support products, its use is primarily justified by tradition rather than validated by rigorous scientific research.

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