Well he needs to avoid pubs and clubs for a start.. and alcohol is the main trigger to go and buy coke… so he might not like you telling him this but he needs to stop drinking. Im not going to paint it nice and say he can have a couple just for a meal or something.. because he cant… if he is bad on it… he needs be alcohol free.
Plus he needs delete all dealers numbers out his phone. Not hang around with his mates or fam members that use. Delete all social media. Ive come off facebook and insta.. and it does help a lot.
I also listen to a lot of and watch cocaine recovery stories. These help alot and you can relate to them. Maybe go to C.A meetings as well.. i never have but they do help.
And he needs to turn his routine around.. do new hobbies, set himself task. Like go to the gym.. for 3 month 5 days a week and get to a certain size. Just some goals to acheive, it can be anything readlly. I took up reading and i have never really read. Tell him look up the triggers for emotional, mental and physical relapse.
He needs to tell himself when he wakes up.. hes just going to stay clean for today.. not 3 month.. just today. Its all anout one day at a time.
Im not going to lie its hard.. and his brain will trick him in to getting cocaine.. its a real sneaky drug. He needs to be aware and really want it. Good luck.
Just ask if you need out