Arnica is brill, fantastic stuff. But I have to qualify that by saying the only times we have used it is on the horses. Eventing and showjumping do take a lot out of their legs and even the slightest bruise or swelling gets arnica (cream) slapped all over it. Now I'm not suggesting for a mo that you start galloping around the countryside, but if its good for them, well it can only be good for us? Cant comment on the blood pressure, though.