Feverfew herb is a traditional medicinal herb that has been used for centuries to reduce fever and other ailments. It has also been used to treat headaches, arthritis, menstrual cramps, and other chronic and acute ailments. It is a member of the daisy family and has white flowers with yellow centers. It is known for its bitter taste and strong aroma. Feverfew is a natural remedy and can be consumed as a tea or taken as a supplement.