If it's literally just her skin that is that color, not oozing something that color, and not swollen like there is green fluid under the skin, then it's probably just bruised.
I would probably put her on an antibiotic anyway though. Bite wounds are really dirty, and there's definitely bacteria in those wounds.
I would probably put her on an antibiotic anyway though. Bite wounds are really dirty, and there's definitely bacteria in those wounds.