For sudden back pain, over-the-counter pain relievers can provide relief. You can try acetaminophen for pain, or an anti-inflammatory drug like ibuprofen or naproxen to reduce swelling, provided you have no kidney, heart, or stomach issues. Always take anti-inflammatories with food. Applying a warm compress or an ice pack for 15 minutes can also help soothe the muscles. Try to stay gently active and avoid prolonged bed rest. Please see a doctor immediately if you experience numbness, tingling, leg weakness, or changes in bowel or bladder control. Otherwise, if the pain persists beyond a few days, consult a healthcare provider for a tailored evaluation.