There are two options you have to rehabilitate you family member who addicted to alcohol or drug. He can choose to have outpatient or inpatient rehabilitation program. Actually, the decision can be made based on the overall observation made by the doctor and counselor. Being an outpatient will be fine if it is the one needed by your family member. Perhaps, he is not severe in the addiction and drink alcohol since he cannot control himself. In this case, setting an appointment with an alcohol rehab therapist twice a month can be done. The therapist will try to deal with the problems that make him go to alcohol.
If your family member has alcohol addiction for long time, he still has the opportunity to go with outpatient treatment as long as he has taken alcohol detoxification. So, the treatment is about making him realize the bad side of alcohol and reasons to stat alcohol free. This can be a good option for your family member as the addition after getting inpatient alcohol rehab. He needs to attend for support or group discussion which is controlled by therapist and counselor. So, what you are going to do is making the patient understand and deal with life in general without thinking that drinking is the way to have fun or ease the pain. This is based on the fact that most people drink since that they cannot handle life.