High paying job but toxic, should I resign?

I am working a job that pays high enough to cover my expenses and even some allowance to save. But the issue is that the environment is very toxic. My boss abuses everyone at will, and when it suits her anger she can even slap some of the staff.

I  am at crossroads now because I need he money, but it has started affecting my mental health. In this present economy, a good job is hard to find. My health is going down.

What do I do?