Going out on a limb but perhaps Epsom salt baths.

I've used ginger for nausea, just chewed a little piece and kept it in my mouth for a while, it actually helped. Or maybe ginger tea.

With a name like"Mark" I gotta wonder... But time. Time heals all pain eventually. And now and then, the pain is but an overture to something so much greater that it overshadows the pain to the point that you forget. That's where this goes... I've been through it a couple times myself... well, it wasn't me but my wife. I assume perhaps this is like you.

Ginger. I ate saltine crackers to calm my pregnancy nausea, not natural but it was the only thing I could tolerate 🤷‍♀️. Good luck to her and hopefully it resolves itself quickly.