I would take her to the vet for an antibiotic shot, and professional check. She might have punctures other places under her fur, as well, that could abcess if not treated. That happened to my cat once, I cleaned her up, then a few days later she was really sick and I almost lost her. The vet found a wound I hadn’t seen, and had quite a time clearing up her infection from that one tiny puncture. Good Luck!