Arnica leaves and flowers have been used to treat discoloration, swelling and pain from bruises and also after surgery. The University of Maryland Medical Center observes that Arnica has been used in the form of salves, ointments, liniments and tinctures for wound healing, to reduce inflammation and to soothe muscle aches, as well as for injuries involving bruises and sprains.
Remedy's Arnica Oil infusion is made from Arnica leaves and flowers. Although salves and ointments are effective, the oil is more concentrated because it has not been diluted with the waxes that are necessary to turn the oil into a salve, ointment or cream.
The active ingredients responsible for Arnica's ability to relieve pain and dissolve bruises are, in part, sesquiterpene lactones. These reduce inflammation and inhibit certain genes responsible for activation of cyclooxygenase.