Anti Vax Family

My husband’s cousin (all of his cousins and I are close knit) is an anti-vaxxer and always posting about it on her IG stories. I mostly don’t engage and move on but one post she stated about how vaccines cause autism and I snapped. I reached out to her that her spread false information hurt me as she knows both my children are on the spectrum and we had a little debate and it ended cordial and she thanked me for letting her know my option and that she likes to hear both sides. However, she keeps posting stuff like that. I love every other aspect of her and I haven’t engaged in the topic since and just keep scrolling; but it still irks me and gets me in my feels 😩😮‍💨. Does anyone else have a family member like this that you love, how do you deal inside?