Hey
What a situation to find yourself in, thankfully he is in a rehab which is absolutely the best place for him right now.
I’m no doctor so not sure how long it will take for the physical signs to go away – the rehab should be able to advise on that, make sure you ask them and get all the information. What I do know is that cirrhosis is very serious (without scaremongering) so thank god you managed to get him care. Even if the physical signs go away there is still the damage to the liver and that means he absolutely cannot drink again.
I hope he makes a good recovery and wish you well, please keep us updated