Just got back from a weekend campout that included short trip cross country to a geographical feature that involved steep granite and class 2 scrambling... I had an unfortunate incident that left me with a bunch of shallower abrasions that are now scabbed over without incident, and two more alarming injuries - at first I thought I had torn my thumb in two and broken my wrist. A loose rock that looked like a part of a larger, near vertical granite slab shot out from under my boot and down I went, taking a lot of my weight on my left hand - apparently my thumb was slightly bent and the bone along my thumb is still sore, but not broken or fractured (no significant pain). I have a two inch open area on my palm and a fairly deep open place along the left side of my thumb nail.
We field dressed it the best we could. I had to use water from my bite valve to wash away all the blood. I was the only one of us with tape, gauze, disinfectant swabs, antibiotic cream and the ace bandage with which I wrapped the whole hand just to keep the gauze/tape in place on my palm. The palm is a very difficult place to tape up or keep a bandage on, too many flex points and bends. I did not have my leukotape with me, alas - it gets wrapped around my eyeglass case and I left that in camp. That would have adhered even to the bends in the palm.
I redressed it that evening in camp, examining it closely with my glasses on, picking out a few stray bits, shooting my palm with Purell (the scream echoed for a bit), and redressing it with antiobiotic cream before bandaging with clean nonstick gauze and tape, then stuffing the hand in a glove. (It got down to 25F and snowed that night, I slept in an extra layer.)
24 hours later, neither area appears swollen, no pus, doesn't seem infected; there will be dead skin coming off eventually as the wounds heal up, but we appear to have gotten out the bits of rock that were driven in and the edges seem clean. The thumb injury looks icky but doesn't hurt. I'm optimistic that it will turn out okay, since it's not my first run in with granite. Anyone who goes scrambling in granite knows better than to leave the gloves on the table at home, but apparently there's nothing you can put in your first aid kit to counter forgetfulness.