This is counter to the feel, I feel like the game is presenting to us. Currently the combatants including gangers, don't drink booze at all when injured, even when it might be in character to do so. And this creates a slightly awkward disjointed feel to alcohol as a system.
I'd propose, that in addition to the current effects, when injured, alcohol should provide a certain level of ghost healing or health. IE an ability to ignore wounds to a certain degree minor degree. Something so that if or as you got into combat you could soak a few extra minor hits or a couple major ones while injured without going unconscious. Or some other mechanical benefit too it, that might incentive its use over waiting in your apartment for 6 or so hours to go out after getting beat down while the last of the bruises fade. Hell a brawl might have a lull in the middle while people drank just to get brawling again, just getting more bruised up, stimulating the doctor economy.
It also provides a sort of minor, buffer, when you are injured, that you can go out and get into combat with, however, you run the risk of getting more injured than you normally might.
Bruised a rib?
Do booze for that
Put some booze on that.
Life threatening injuries?
See a doctor, and then do booze for that.
Hey Mixer, you should be doing booze for that.
I honestly don't know if this is possible but it's something that struck me as weird. When it's like someones all torn apart, and you see them all like, "NO! I DO NOT WANT BOOZE!" Fucking hell, don't want the cheapest painkiller in the mix then I take it. And this was my idea for a solution.