Feverfew herbs is known to help bring on uterine contractions to reduce the length of labor. It may aid in starting menstrual periods and treating menstrual pain. Feverfew may relieve colitis, stomach ache, tooth ache and soothe insect bites. It also helps with infertility in women. Makes a pleasant tea. May also be tinctured, made into syrup or encapsulated as a dietary supplement. safety May increase the effects of blood-thinning medications. Do not use during pregnancy.