If your PC with a drug addiction wanted to deal with his addiction by drying out, how would you handle it?

Obviously this is big story stuff and should be played out as opposed to just making a few roles. It could also come at the worst time when the rest of the party needs the PC to be at the top of their game and an addict going through withdrawal is not in top form.

Anyway, just asking for some opinions.

I use setback dice for withdrawl symptoms. You could work in some sort of hard to get substance that help kicks the addiction and makes the withdrawl tolerable. This is probably something that will come up a lot as people transition from Obligation to Duty for AoR. Don't want to sign up new Rebels who are strung out on booster blue, lol.

For one of my players he has a gambling addiction, so whenever a chance for a gamble comes up, if he declines, I throw in setbacks from that moment forward until he gets his next gambling hit.

If it was a player who could roleplay it well, I'd definitely give them opportunities in the story to be tempted.

I'd give them Setback dice or even potentially upgrade the difficulty of some checks as they were going through this withdrawal period.

Maybe they pass a cantina, they wish they could have a drink, and for the next encounter they've got 2 Setbacks to their checks because it's so hard.