Arnica (Arnica Montana) has been used extensively in European folk medicine. Arnica flower and root have been used as a pain reliever, expectorant, and stimulant. Johann Wolfgang von Goethe (1749 - 1832), the German philosopher and poet, drank Arnica tea to ease his angina in old age. Internal use is extremely risky and is not recommended. In countries where arnica is indigenous, it has long been a popular remedy for a variety of problems.

Arnica is remedy for
Bruises
Sprains
Muscle pain or joint inflammation
Chilblains, when skin in unbroken

Arnica improves the local blood supply and speeds the healing process. Arnica soothes and heals skin wounds and irritations. Repeated applications may produce sever inflammation. Most often an ointment or compress is used for external application.

Generally, the plant is taken internally only at a homeopathic dilution, principally for shock, injury, and pain. If taken as a decoction or tincture, it stimulates the circulation and can be a valuable treatment for angina and a weak or failing heart. It can be toxic even at low dosage, so it's rarely used in this way. Arnica Includes: Arnica contains a bitter yellow crystalline principle called Arnicin, and a volatile oil. Tannin and phulin are also present, along with sesquiterpene lactones and flavonoids. The flowers are said to contain more Arnicin than the rhizome, but no tannin. The volatile oil contains thymol, mucilage, and polysaccharides.