Is detoxification necessary in treating alcohol addiction?

Can you answer izzie’s question about Addiction?:

My best friend is an alcoholic. I accompanied him to a alcohol rehab last Wednesday because I finally convinced him to get some help. The doctor and the counselor said that he has to undergo a detoxification first. What is detoxification? Is it really necessary? My best friend is asking me these questions and I don’t know what to answer.

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How do I get alcohol rehab program?

Can you answer Lanie A’s question about Addiction?:

I’m twenty-one and I started drinking when I was sixteen. At first, it was just casual drinking with friends but when I got into college, I became an alcoholic. I was always out every night and I drink an average of fifteen bottles of beer. I would not go home until I felt every part of my body was filled with booze. After realizing how alcohol can kill me and how it has ruined my life, I would do anything to lose the habit. Please help me find an alcohol rehab program.

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