Arnica is an alpine herb with a long history of use. Arnica is approved for use by the Commission E for external use in injury and for consequences of accidents, e.g. hematoma, dislocations, contusions, edema due to fracture,rheumatic muscleand joint pain. Arnica oils are one of the best known herbal sports medicines; arnica has dramatic results if used immediately after an injury.
Arnica helps speed the healing process by moving waste-bound fluids out and moving cleansing fluids and platelets into the affected area. Theanti-inflammatoryproperties of arnica are primarily due to its sesquiterpene lactones. These chemicals cause a reduction of inflammation by blocking the actions of pro-inflammatory cytokines; however its use is limited to short durations because of allergic skin reactions when overused.