According to the information provided, it is possible for alcohol-induced brain damage to be partially reversed through treatment, although not all damage can be repaired. Alcohol can cause a range of brain injuries, including Wernicke-Korsakoff syndrome and alcohol-related dementia, also known as ARBD (Alzheimer's Society, 2022).

Wernicke's encephalopathy is a neurological emergency caused by thiamine deficiency, which is common in people who are heavily dependent on alcohol (Alcohol Rehab Guide, n.d.). Korsakoff's syndrome often co-occurs with Wernicke's encephalopathy and is characterized by severe memory loss and confusion (Alzheimer's Society, 2022). Treatment for Wernicke-Korsakoff syndrome typically involves thiamine replacement and abstinence from alcohol (Alcohol Rehab Guide, n.d.).

ARBD is a result of long-term alcohol misuse and can cause memory loss, disorientation, and difficulties with co-ordination and processing information (Alzheimer's Society, 2022). While some of the damage caused by ARBD can be reversed through abstinence and therapy, some of the damage is permanent (Alzheimer's Society, 2022).

In summary, alcohol-induced brain damage can be partially reversed through treatment, but not all damage can be repaired. Treatment typically involves abstinence from alcohol, thiamine replacement, and therapy (Alcohol Rehab Guide, n.d.; Alzheimer's Society, 2022).

References:

Alcohol Rehab Guide. (n.d.). Alcohol-Related Brain Damage. Retrieved from <https://www.alcoholrehabguide.org/resources/medical-conditions/alcohol-related-brain-damage/>

Alzheimer's Society. (2022). Alcohol-related brain damage (ARBD). Retrieved from <https://www.alzheimers.org.uk/about-dementia/types-dementia/alcohol-related-brain-damage-arbd>

Drug Patent Watch. (n.d.). ALCOHOL. Retrieved from <https://www.drugpatentwatch.com/p/tradename/ALCOHOL>