Echinacea has been used as an herbal medicine for its immune stimulating properties now for at least two centuries. Because of the support that Echinacea provides to the immune system it may help accelerate recovery from the common cold. Caruso's Echinacea 6500 is a high dose one-a-day formula which helps reduce congestion, runny nose and sneezing associated with the common cold or a head cold. Carusos Echinacea 6500 may help support the immune system in order to reduce the severity and duration of symptoms of the common cold. Improving immune response to colds and flu. Relief of symptoms of upper respiratory tract infections. Relief of congestion associated with common colds. Reducing severity and duration of symptoms of colds and flu.