A little bit of history
Though it is today known as feverfew this relative of the daisy was known to the Ancient Greeks as parthenium, and is believed to have received this name after being used to treat a person who had fallen from the Parthenon in 5th century BC. Ancient Greek physicians originally used feverfew as a treatment "to reduce inflammation and treat menstrual cramps"*. In Medieval Europe it was believed feverfew could offer protection from the plague and was planted around European homes for its protective qualities.
Like the Ancient Greeks, today's physicians also turn to feverfew to solve a variety of problems such as inflammation. Scientists originally though that parthenolide, a substance found within feverfew was the certain factor which gave feverfew its medical properties however it is unknown today which part or substance within the plant contains the most beneficial medical property. Currently physicians are studying the connection between feverfew and the treatment of migraine pain as well as its possible use for treatment of arthritis.
Protection: Arose from the belief in Medieval Europe that it could protect inhabitants from the plague
Protection While Traveling: Little information on where the traveling aspect in specific originates but is likely related to its general protection qualities
Health:Originates from its long medicinal use
Elements: Water, Earth
*Quoted from The University of Maryland Medical Centre