Again, rehabilitation centers are known for aftercare. After treatment, you need some care and this is much beneficial to patients who undergo recovery from drugs. Rehabilitation centers for alcohol rely on aftercare and they begin it when the patient is at the center. Here they will prepare the patient for their journey back home to help them stay away from drugs and substances which might alter the normal function of their body. This is an essential program that should be implemented at any center. It can help any drug addict getting back to the addiction habit.