A professor told my granddaughter at medical school, if you squeeze the top of your big toe that your headache will go away.
She tried it and it worked.
IT is called hand pinch. There are different areas to pinch for headaches.
She learned it in Mexico studying acupuncture.
You can google for hand pinch for headaches, sorry on ipad, can’t do it here.
my mother had told me that, and I think it was the small toe for toothache. I used to have a guide but if I still have it I don’t know where it is.