Alright, I just ran out to the Pet Store and found some Syptic powder (??). Thanks for the advice. Trixie seems to be doing fine... I just have blood all over my furniture
The grooming experience was so weird today. My regular groomer quit, and the owner of the store said she'd groom Trixie instead. But I found out that she's still learning. The cut is okay, not great. And she was very apologetic about the nail incident. She didn't charge me...