Synopsis

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

Asteraceae, a large plant family that includes ragweed, chamomile, and echinacea, has a long history of use in traditional medicine for various respiratory ailments, including allergies. Specific plants within this family—most notably Matricaria chamomilla (chamomile) and Echinacea purpurea—have been used in folk remedies to alleviate symptoms of allergic rhinitis and other respiratory tract irritations. Chamomile, for example, has been consumed as a tea or inhaled as steam to ease nasal congestion and soothe mucous membranes. Echinacea preparations have also been promoted for immune support and sometimes for allergy-related symptoms, though more commonly for colds.

However, the actual scientific evidence supporting the effectiveness of Asteraceae plants for specifically treating or supporting respiratory allergies is limited and often inconclusive. Some laboratory and small clinical studies suggest mild anti-inflammatory or immunomodulatory effects for certain species, but large, well-controlled human trials are lacking. In addition, some members of the Asteraceae family, such as ragweed, are themselves common allergens and can worsen allergy symptoms in sensitive individuals. Overall, the use of Asteraceae for respiratory allergies is rooted more in traditional practice than in validated scientific research.

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