Arnica is a genus with about 30 perennial, herbaceous species, belonging to the sunflower family. The genus name Arnica may be derived from the Greek arna, “lamb,” in reference to the soft, hairy leaves. Arnica montana has been used medicinally for centuries, however there are no scientific studies that prove the medical effectiveness. The roots contain derivatives of thymol, which are used as fungicides and preservatives. Arnica is currently used in liniment and ointment preparations used for strains, sprains, and bruises. Commercial Arnica preparations are frequently used by professional athletes. The thymol derivatives concentrated in the plants roots have been clinically shown to be effective vasodilators of subcutaneous blood capillaries. A study of wound-healing after surgery to treat varicose veins found no statistically significant proof of efficacy.

• For infections, heart problems, high blood pressure: Mix 2 grams of arnica herb per 100 ml of water. Let it boil and simmer it for fifteen minutes. Allow it to steep. Drink a cup twice a day.
• For arthritis, carpal tunnel, swollen joints, rheumatism, varicose veins: Extract of 1 part herb and 5 parts fatty oil. Make sure arnica is not more that fifteen percent in the said mixture. Mix well. Rub this salve on the affected area.
• For mouth diseases, tooth problems, pain reliever: Boil two grams of arnica herb in a pot of water. Let it cool and rinse your mouth with this concoction three times a day.
• For insect bites, muscle soreness: Mix ten to fifteen drops of arnica oil on a cup of warm rosemary water. Apply this mixture on affected area.
• For arthritis, carpal tunnel, swollen joints, rheumatism: Soak a clean towel on warm water mixed with ten drops of arnica oil. Use this as a warm compress on swollen parts of the body.