It is best not to drink alcohol when you sprain your back. 1. Acute lumbar sprain will have severe pain and swelling, then drinking alcohol will dilate blood vessels, bleeding in the muscle, further aggravate the symptoms, is not conducive to tissue repair. 2. After drinking alcohol, the digestive system may have serious dysfunction, such as diarrhea, malabsorption of nutrients and other phenomena, due to lack of nutrients, the repair of locally damaged tissues will be slowed down, and the recovery time will be extended accordingly. 3. In some cases, due to severe pain, oral non-steroidal anti-inflammatory drugs (NSAIDs), such as celecoxib and ibuprofen, etc., alcohol consumption will reduce the efficacy of the treatment, but also allergic reactions may occur, which can be life-threatening in severe cases, so it is not recommended to drink alcohol. When you twist your back, you need to actively seek medical attention and reasonable treatment under the guidance of a physician. The use of medication should be in accordance with the doctor’s instructions.