Rheumatism Skin inflammation Arnica has also been proven effective for the common cold, cough, bronchitis, fever, sore throat, and a tendency to infection. However, it is no longer recommended for these conditions due to its dangerous side effects.
Modern use is limited to external applications.
Unproven uses in folk medicine include heart problems, chest pain, hardening of the arteries, severe uterine bleeding, fatigue, boils, insect bites, and inflamed veins. The plant grows as high as 20 inches and produces aromatic, yellowish flowers. Arnica exhibits antiseptic and pain-killing properties when applied to inflammations. Researchers have also found that, in animals, it increases the flow of blood to the heart muscle and reduces resistance in the veins. External use is considered safe under all medical conditions.