How safe is it to detox at home from Oxycodone..without assistance?

Our friend is detoxing at home from a pretty serious Oxycodone use habit. He is not using anything at all to detox and right now he's vomiting. I'm really worried about him. What do I need to know? How can I help?

: http://alcoholdrugstreatment.info/how-safe-is-it-to-detox-at-home-from-oxycodone-without-assistance