How can I help my girlfriend who'd struggling with her body image

Just as the title says, could someone give me some advice on how I could help my girlfriend.

Some possibly needed background; I'm a 18yo guy and she's the same age. We've been together for about 4 months now and during this time she's had multiple depressive moments because of her aforementioned body image issues. Apparently this stems from her being bullied through the majority of middle school. She's told me that she has spoken with a therapist and that it helped in the beginning but then after a few visits they told her that they couldn't do anything more to help her. These visits happened a few years ago.

I was just wondering if any kind person here on reddit could help me help her through these though moments.