Arnica oil is an all natural oil that is very beneficial for people who has inflammation like arthritis. It is also great for bruises , and skin discoloration. I also noticed that is has helped with swelling and pain. I also use it on my lower back when I experience lower back pains. I recently used arnica oil on a dark and painful lump under my arm, I don't know what the condition was but the oil helped tremendously. After 2 weeks of putting the oil on the lump I noticed that the lump disappeared and the color was alittle lighter. I am sharing this information because I think this is worth giving a try for aches and also for the bruises like I had. It is all natural and safer than most commercial products that we love to put on our bodies.