Ouch! That doesnt look plesant.
I hate to say but you might need to use an e-collar (I hate putting them on my dogs) so she doesn't continue to go after it. I also would avoid wrapping it because it might keep moisture in, preventing it from healing.
I've heard epsom salt soaks will help speed up the healing process but it sounds like a e collar will help here too.
Sent from my Pixel 3 using Tapatalk