I suggest you stay in the hospital for the whole of your stay, probably 2 weeks. You should start walking around as soon as you can really as it helps with the swelling. If he says you have to be on liquids, then go to the supermarket at buy some soup because the soup in the hospital is terrible but if you're just having a chin wing, then you should be able to chew normal food quite soon after surgery to be fair. I stayed in the hospital for my whole stay, so literally walked across the hallway to his office every morning for a check up. Depends on the individual but most swelling is usually gone between 4 and 6 weeks