What is the main use of Echinacea?

Echinacea is primarily recognized for its role in boosting the immune system. It is an herb that has been traditionally used to help prevent and treat colds and other respiratory infections. The active compounds in Echinacea, such as polysaccharides and alkamides, are believed to stimulate various immune responses, enhancing the body's ability to fight off pathogens. Many studies have investigated its efficacy, and while results can vary, it is widely accepted that Echinacea can help reduce the duration and severity of cold symptoms.

The other options relate to benefits not typically associated with Echinacea. Although some herbs may support digestive health, enhance skin health, or aid cardiovascular function, those are not the primary uses or benefits of Echinacea as established in herbal medicine and scientific research.