Echinacea has a long history of use for colds, flu, and infections of the skin. Acts as a preventative, taken at the first signs of an imbalance, it will stimulant the body’s defense mechanism and prevent the illness. Echinacea preparations are the most popular herbal medicine in Germany. It is recommended to use for 2 weeks only , then take a break. It is very safe to use. It is important that you take a large enough dose to work : 1/2 – 1 tsp several times daily to prevent colds. Of course, this depends on the person. Alcohol based tincture is the preferred preparation.