Long-term meth users will experience severe withdrawal. Attending a residential rehab allows them to receive high-quality care. Staff will oversee the detox process and can help residents through it. Detox and withdrawal often lead to a quick relapse. However, residential rehab helps eliminate relapse. Inpatient rehab usually lasts 30 days. Clients needing additional care can stay for longer. There are also aftercare programs the rehab can organize for patients.