Find a derm that will give u accutane. Everything else is a band aid and will make your life hell.
She just said her acne isn't that bad, which likely mean she's dealing with Acne Dysmorphia which is basically a Dysmorphism. Going on Accutane isn't going to help this necessarily, it's her mental state that needs help.
Some derms give low dose accutane for mild/moderate acne. Being acne free will be a bigger boost for her mental health.