Echinacea is the prime remedy to help the body rid itself of microbial infection. It is effective against both bacterial and viral attacks. It may be used in conditions such as boils, septicaemia and other infections of that sort. In conjunction with other herbs it may be used for any infection anywhere in the body. For example in combination with Yarrow or Bearberry it will effectively stop cystitis. It is especially useful for the infections of the upper respiratory tract such as laryngitis, tonsilitis, and for catarrhal conditions of the nose and sinus. In general it may be used widely and safely. The tincture or decoction may be used as a mouthwash in the treatment of pyorrhoea and gingivitis. It may used as an external lotion help septic sores and cuts. The New Holistic Herbal by David Hoffmann Pg. 197