Eclipta (Eclipta alba), also known as false daisy, is an herb commonly used in traditional Ayurvedic and folk medicine systems. Historically, Eclipta has been employed for a variety of ailments, including respiratory conditions such as bronchial congestion. In Ayurveda, Eclipta is classified as a "rasayana" (rejuvenative) herb and is mentioned in several classical texts as beneficial for respiratory health, where it is believed to help clear phlegm and ease breathing difficulties. Traditional preparations often involve the juice or decoction of the leaves, administered orally or sometimes used as a steam inhalation to relieve symptoms of congestion.

Modern scientific investigation into Eclipta's effects on bronchial congestion specifically is limited. Some in vitro and animal studies have identified anti-inflammatory, antimicrobial, and expectorant properties, which could theoretically contribute to relieving respiratory congestion. However, robust clinical trials evaluating Eclipta's efficacy for bronchial congestion in humans are lacking. Thus, while its use for this purpose is rooted in historical and traditional practice, scientific validation remains limited at present.

In summary, Eclipta's use for bronchial congestion is primarily justified by traditional medical systems, and current evidence from scientific research is insufficient to strongly support or refute its effectiveness for this indication.