I found a great article that breaks down the stages to recovery from drug addiction. It’s straightforward and helps explain what someone can expect at different points in the process. You can find it here
https://unitedrecoveryproject.com/rehab-blog/stages-to-recovery-from-drug-addiction/ . Hopefully, it provides some clarity for you and your friend as they go through this. Having access to reliable information can make a huge difference in supporting their progress. It’s important to know that every step in recovery is a win, no matter how small it may seem. I hope this article brings some peace of mind to both you and your friend.