"The liver has a remarkable capacity to regenerate," Dr. Olsen says. "If you allow your body a break between insults to the liver, meaning not drinking all the time or limiting the amount you drink, you will recover up to a certain point."
If the liver is really scarred, however, it loses the ability to regenerate. The only way to reverse damage from alcohol-induced scarring is to completely abstain from alcohol. If that plan of attack just isn't in the cards for you, it's best to not get your liver to that point in the first place.
On average, she says two to three drinks a couple nights a week is a safe amount, assuming there aren't any other unhealthy liver offenders (genetics, poor diet, etc.). But if you feel like you've been hitting the bottle pretty heavily lately, then it's best to give your liver a break from the booze, and stick to only a couple drinks a week.