I've recently read a lot about a supplement called Dihydromyricetin "DHM". It is advertised as a "sober pill" meaning it actually makes you feel more sober if you take it after drinking.
But a lot of research shows it can help a lot with alcohol withdrawal because of the effect it has on GABA receptors (which are heavily effected by long-term alcohol consumption).
This is the article I read about it:
Can Dihydromyricetin (DHM) Lower Alcohol Dependency and Lessen Alcohol Withdrawal Symptoms?