I'm quite confused here

I'm not entirely sure what to do in this DLC area, I also keep getting caught by the big monster thing trying to run past it, is there a way to distract it long enough to get passed it or am I just screwed?

I'm not entirely sure what to do in this DLC area, I also keep getting caught by the big monster thing trying to run past it, is there a way to distract it long enough to get passed it or am I just screwed?