I second the arnica and the vitamin C. I have a genetic condition that makes me bruise easily (and everywhere). The vitamin C is often recommended against bruising. I don't take an extremely high dose, but I aim to take it with every meal, and I have 500mg caps.
I have a wonder goo from an aromatherapist, they call it Miracle Balm. She picks the herbs and infuses them into the oil herself. I use it mostly for the arnica, even though it has many useful ingredients. If you have a local herbalist, or herb farm, or massage therapists, or really, any alternative health practitioners, they could probably refer you to someone doing something similar.
I also take a Standard Process supplement called Circuplex. It was recommended to me by a chiropractor. It's supposed to strengthen blood vessel walls. I always know when I'm forgetting it (or out of it) because my hands blow up (I have burst a blood vessel in my pinky from tying my shoe!). Good stuff.
Love is that condition in which the happiness of another person is essential to your own...
Robert A. Heinlein
Me: female, bi, (formerly hinge of a vee)
with FirstBoyFriend (FBF)(moderately long-distance)
and no longer with CurrentBoyFriend (CBF)(who lives in the apartment building next door)