I'm Sicilian as is my friend who recommended this natural cure for vomiting/nausea. Both our great grandmothers were natural healers. If you are vomiting or Nauseous eat a green apple/Granny Smith. You must consume the peel, as the remedy is believed to be in the peel. I've used this and it worked within 20 minutes. I think it may be a lot easier to keep down than charcoal or onion juice, although I use onion juice for a lot of other things.