Recurring back pain from sitting for long periods often happens because of muscle strain, poor posture, weak back muscles, sitting too long, extra weight, or spine issues. Medicines like Aceclofenac and pain-relief gels can ease pain for a while, but the pain may come back if the main problem is not fixed. To help your lower back, try to sit with good posture, avoid sitting too long at once, use back support, and take short walks every 30 to 40 minutes. Regular stretching, light exercise, and strengthening your back and core muscles can help in the long run. Sleeping on a supportive mattress and avoiding sudden heavy lifting can also prevent pain from coming back. Don?t use pain medicines often without checking with a doctor, since they only manage symptoms and do not solve the root cause. Consult a doctor if your pain spreads to your legs, causes numbness, weakness, fever, stiffness, or trouble walking, as you may need further tests or physiotherapy.