Recognize what makes this moment difficult
Acknowledge the event directly without turning it into a lesson, comparison, prediction, or silver lining. For a message about how to support someone after a recovery relapse, use this factual base: use the person's own language for recovery, name the practical concern, and distinguish a lapse from what you do not know.
Offer support that can be accepted
Offer one specific form of practical or emotional support and make clear that no immediate reply is needed. Offer a specific sober or practical support option and encourage connection with qualified help. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Follow their pace rather than yours
Do not shame, bargain, lend money without limits, or make your relationship the reward for recovery. For overdose, dangerous withdrawal, suicidal intent, violence, or immediate risk, contact emergency or crisis services now. The recipient decides whether they want conversation, ordinary company, practical help, professional support, or quiet.