Emergency vet or not?

We just had a horrible cat fight and one of my cats is bleeding near her ear - more a scrape than a puncture wound. I can't tell if it's a scratch or a bite, but I'm very worried about infection. Does this need an emergency vet or can it wait until morning? Everything I've read online talks about puncture wounds and abscesses, and this is more...just raw looking.

ETA: I'd just leave now for the emergency vet, but I've been throwing up all day, so I'd like to avoid it if at all possible. But I'll go if it's really necessary.

I would clean it with warm water and keep an eye on it. If it's not gushing blood, she should be okay until you can get her to the reg vet tomorrow.