Synopsis

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

Aerva lanata, commonly known as "mountain knotgrass," has a long history of use in traditional medicine systems, particularly in Ayurveda and Siddha, across India and neighboring regions. Traditional healers have often recommended decoctions or infusions of Aerva lanata for the management of colds, especially those accompanied by fever. The rationale in these systems is generally rooted in the plant’s reputed diaphoretic (sweat-inducing) and cooling properties, which are believed to help reduce fever and alleviate symptoms of respiratory ailments.

However, scientific validation for these uses is limited. While a few studies have evaluated the plant’s general antimicrobial, anti-inflammatory, and antipyretic (fever-reducing) properties, direct clinical evidence supporting its efficacy specifically for colds with fever is lacking. Some in vitro and animal studies suggest that extracts of Aerva lanata possess compounds with mild antimicrobial and anti-inflammatory activity, but these have not been translated into robust clinical trials or guidelines for use in human respiratory infections.

In summary, the use of Aerva lanata for colds with fever is primarily justified by traditional practices rather than strong scientific evidence. The evidence rating is 2, acknowledging historical use and some supportive, but indirect, pharmacological data.

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