There is no such thing as the fastest and most effective way to treat a sprained back, and it is usually treated through medication, physical therapy, and other methods. 1. medication: lumbar sprain patients after the disease, it is generally recommended to bed rest treatment, at the same time can be taken under the guidance of the doctor non-steroidal anti-inflammatory drugs, such as ibuprofen extended-release capsules, naproxen tablets and other drugs, to reduce inflammatory edema, to achieve relief of lumbar sprain parts of the role of the pain. 2. Physical therapy: patients in the 72 hours after the sprain can be localized cold compresses to relieve edema, and then hot compresses to promote blood circulation, or to the regular hospital to receive physical therapy, electrotherapy and other physical therapy, under the guidance of the doctor to actively treat, and promote the recovery of the condition. It is recommended that patients with sprains go to the hospital as soon as possible for a relevant examination, and under the advice of the doctor, according to the condition of the targeted treatment.