The main problem is the distrust of the treatment. Generally, when drug is used, the method of dry detoxification, that is, the person may not be issued any medication, it is isolated and not allowed to any drugs. Breaking occurs, each cell of the body requires a new dose. This is accompanied by a hellish and unbearable pain. The treatment consists in the fact that on a psychological level to reinforce the aversion to drugs. But after a time finds a second wave breaking, which addicts can not resist, and they begin to eat again. Therefore, you should convince the person that there are alternative methods to get euphoric - sports, and extreme sports holidays.
Talking to an addict, remember that man does not belong to himself, his brain clouded by various stimulants. Try to avoid controversial and provokes emotions of the scenes - it will not bring advantage neither to you nor to him. Do not try him to explain anything in the heat of aggression and despair.
Follow him, coolly recording his ridiculous actions, then in fact provide evidence and reasons that he needs to seek professional medical help. Usually, such people consider themselves perfectly healthy and able to stop using drugs at any time. Appealing your observations, perhaps you will have the chance to reach his consciousness.
The next step to healing can become a conversation with a former drug addict. He can tell your friend or loved one how horrible it is to live in a state of addiction, and how beautiful the world is without drugs.
Preventive conversations can also have a positive impact, particularly if it will talk to the person he respects and appreciates. Every time you need to emphasize the fact that the consequences of drug addiction are destructive and irreversible, what do you think about him, worry about his physical and mental health, want to help sincerely.
Explain to the person that you will not leave him in a difficult moment that will pass this thorny path side by side, will change and improve with it.