I know a person that abused drugs for a few years (opiates), than saw something that scared them and quit without rehab or any kind of detox or whatever. They were sick as fuck for a day, but than, over it completely.
It's been a few years and this person hasn't touched any drugs.
How can that work? I was just watching something on TV that made me curious about it?
I thought you generally had to come off slowly, maybe get some counseling, etc...