Bilberry has been used for centuries by European healers to treat such things as stomach cramps, diarrhea and diabetes. Now bilberry is most often used to prevent night blindness. It seems to be able to strengthen the capillaries and protect them from free radical damage. This plant contains flavonoids called anthocyanosides. These are a powerful antioxidant. In the past, bilberry has also been used as a remedy for varicose veins, hemorrhoids and bruising.
Butterbur has traditionally been used to treat coughs, urinary problems, fever and to expel intestinal parasites. Now this herb is mostly used as an anti-inflammatory agent and to treat migraine headaches. It is sometimes used to reduce smooth muscle spasms. Some studies have found butterbur effective in reducing bronchial spasms in people having bronchitis and asthma. Butterbur extract is often just as effective as prescription antihistamines for treating allergic rhinitis and hay fever.