Symptomatic relief of cold & flu Supports the immune system Licensed traditional herbal remedy for colds and flu Echinaforce helps the body fight the symptoms of these infections by supporting the immune system, helping to maintain the body's resistance. Symptomatic relief of cold & flu Supports the immune system Licensed traditional herbal remedy for colds and flu Echinaforce helps the body fight the symptoms of these infections by supporting the immune system, helping to maintain the body's resistance.