“Rehab” (short for rehabilitation) is also known as drug addiction treatment and is a professionally managed way to begin recovery from substance abuse. It’s what makes your freedom from addiction possible. Rehab occurs after detox and is a longer process (detox only lasts as long as it takes for the substances to leave your body and for you to stabilize medically). Drug abuse is often a long-term problem, so drug rehab can take time and sometimes multiple attempts are required before full recovery is possible.
Rehab offers a break from your normal surroundings and creates a safe space for you to begin getting healthy.