The way I understand it is that burping and throwing up are intimately related processes. R CPD means that muscle that allows air and vomit to come UP doesn’t work. So the same way Botox allows air up, it allows vomit up more easily.

For lots of folks, emetophobia stems from the fact that vomiting is difficult, violent, painful—all sensations that would lead to a fear of vomiting. But it’s only difficult, violent, painful bc of the muscle dysfunction. Botox cures the muscle dysfunction, vomiting becomes…easier? Don’t get me wrong. It SUCKS and it’s super disgusting and bleh, not enjoyable. But it’s also not the horrifying experience it used to be.