Bilberry was widely used by British pilots during WWII to improve night vision before night bombing raids. It is also said to halt or prevent effects of macular degeneration, glaucoma, and myopia, supposedly because of its effect on the tiny capillaries that make up the eye.
Bilberry is now being studied as a possible treatment for varicose veins and thrombosis.
Feverfew
Modern research has shown feverfew to be an effective remedy for migraines and headaches, although it seems the herb is more effective at preventing rather than treating migraines. It also appears to work better on people who have not responded to conventional therapies.
Folk medicine also uses feverfew as a treatment for fevers and painful ailments, including arthritis and muscle tension.
Feverfew is a very adaptable herb and can be equally effective fresh or dried, as capsules, or in liquid-extract forms.
Golden Seal
Golden Seal was highly valuable to Native Americans, who used extensively for its antiseptic properties. The herb acts as an antibiotic, anti-inflammatory, and haemostatic. It's especially effective in treating bladder infections, and as a tonic and diuretic.
Often marketed as a multi-purpose remedy, it has gained such popularity in the last ten years that prices have soared, making it one of the most expensive herbs available, especially in salve form (tablets are somewhat less expensive, but also less concentrated). Widely used in western medicine in the treatment of respiratory and digestive diseases, golden seal is a common ingredient in herbal supplements, from allergy remedies to decongestant nose sprays. It is also promoted as a "blood cleanser" to prepare for drug and alcohol tests.
Golden seal is now being studied as a possible treatment for cancers of the ovaries and uterus.
While the plant itself is poisonous, the commercial-strength extract has few contraindications, especially in small doses (long-term used is not recommended). Golden seal can induce early labor, so it should be avoided by pregnant women.