Yes, it is possible to relapse from alcohol addiction. Relapse refers to returning to using alcohol after a period of abstinence. Addiction is a chronic condition, and relapse is a common occurrence in recovery. Factors that can contribute to relapse include stress, triggers, social pressure, and mental health issues. However, relapse does not mean that treatment has failed, and it is important to continue seeking support and treatment after a relapse to continue on the path to recovery.