Resources for a specific subset of anti-vax parents?

I have an acquaintance who believes her oldest child is vaccine-injured (in a nonspecific/vague way). She has homeschooled her kids but now needs to put them in school so she can get a job. Her state doesn’t have exemptions. My answer is “just vaccinate your kids” but obviously that’s not going to win anyone over. I know a lot of the big resources addressing generic vaccine hesitancy, but she thinks her situation is different. Advice?