Answer: He should talk to his mother about the damage that alcohol causes in his life and recommend therapy to overcome that problem.
Explanation: Alcoholism is a serious problem and requires professional help to overcome it. The adolescent should, as a first strategy, talk with her mother about the damage that alcohol is doing in her life. You must tell her how her life has changed due to the addiction and how it affects the rest of the family.
The other strategy is professional help. The adolescent should seek professional help to be able to intervene with the mother and help her overcome the problem since alcoholism is a disease that cannot be overcome by the person itself since he is not able to recognize its problem.