Your friend has a big resolvable problem. Since your friend is one of those alcohols addict. Thus he/she need to require a long term period of treatment. Since alcohol is one of the body invading toxic substances he/she must undergo detoxification treatment which rehabilitation has one program on it. From the face that he/she is drinkers he/she cab too continue the normal routine of lives. Remember everybody commits mistakes but that doesn’t mean you will no longer correct it. There is a second chance in each of us; Correct our mistakes and to improve our lives.