An analysis of 14 existing studies on Echinacea, published last week in the journal Lancet Infectious Diseases, shows that the herbal remedy can cut the risk of catching a cold, and reduce the severity of a cold by up to a day-and-a-half. This comes as no surprise to Dr Philip Kerr, lecturer in Medicinal Chemistry at Charles Sturt University’s Wagga Wagga Campus. “I’m a tincture rather than tablet man myself,” says Dr Kerr. Echinacea supplements are available as tablets, extracts, tincture, tea and even in fresh juice. He adds it should be taken, “At the very first sign of feeling a bit off.” Dr Kerr says to watch for the “tingle on the tongue” as a sign of an effective Echinacea remedy. Echinacea effectiveness can be reduced by “the process by which the plant extract has been prepared, and which variety of the plant has been used,” Dr Kerr said.