My daughter skin problems have all but gone

Hi I’ve came on this to share an experience My daughter has suffered really badly with scalp and all over body blisters since she was 12, tried all the ointments and lotions She is now 21, and turned vegan recently because of her strong feelings about animal welfare and the environment Literally no skin problems After all the years of discomfort and difficulty for a teenager - looks like diet has been a major factor We did try dietary change a few years back but perhaps not very strict She thought at first it was the vitamin D supplement but she doesn’t take that much now and her skin is still relatively clear